This question tests recall of the specific factual allegation made by the Plaintiff against the Defendant's mark R-SEAL, as stated in the excerpted case.
The passage's own wording directly supports option D and rules out the rest.
Hence, the correct answer is D) deceptively similar.
This question asks what a Plaintiff must show about the Defendant's work to succeed on a copyright infringement claim over packaging and labels.
Only option B correctly states the substantial-similarity/reproduction standard used in Indian copyright law.
Hence, the correct answer is B) looks similar to or like a copy or is reproduction of substantial part of the Plaintiff's work.
This question asks which of the four listed items is not something the Plaintiff actually pleaded as part of its infringement claim.
Since A, B, and D are all expressly pleaded in the extract and C is never mentioned, C is the outlier.
Hence, the correct answer is C) patent.
This question asks for the recognised legal test used to establish "prior use" of a trademark.
Only option A actually describes the criteria for establishing prior use.
Hence, the correct answer is A) open, continuous, extensive, uninterrupted use and promotion for a long time.
This question asks which option correctly states what Section 29 of the Trade Marks Act, 1999 treats as infringement.
Only option D reproduces the actual elements of the Section 29 infringement test.
Hence, the correct answer is D) Infringement of a registered trademark by use of an identical or deceptively similar trademark in relation to identical or similar goods.
This question asks when use of a trademark by another crosses the line into violating the exclusive rights of a prior user or proprietor.
Only option B identifies the actual legal trigger for violation of exclusive trademark rights.
Hence, the correct answer is B) usage is likely to cause confusion and deception amongst members of the trade and public.
This question asks what kind of wrong is committed when a Defendant dilutes a Plaintiff's brand.
Only option A correctly characterises the legal nature of a dilution claim.
Hence, the correct answer is A) a civil wrong.
Step 1: Meaning in IP law.
Acquiescence occurs when the proprietor of a trademark knowingly allows another to use the mark for a significant time without objection, implying consent and waiving the right to later challenge that use.
Step 2: Legal effect.
The defence bars the proprietor from obtaining injunctive relief against the user, especially when the user has built goodwill relying on the proprietor’s inaction.
Step 3: Eliminating incorrect options.
(A) No confusion is a separate defence based on absence of likelihood of confusion.
(C) Invalidity challenges the registration itself.
(D) Good faith use is another statutory defence, not acquiescence.
\[ \boxed{\text{B}} \]
This question asks for the correct definition of the defence of "acquiescence" in trademark law.
Only option B captures the "knowing, prolonged inaction amounting to implied consent" character of acquiescence.
Hence, the correct answer is B) waiver of right over trademark and permission for use of the mark.
This question asks which decision established the three-part "Classical Trinity" test for passing off.
Only Reckitt & Colman is the source of the three-element test named in the question.
Hence, the correct answer is C) Reckitt & Colman Products Ltd. v. Borden Inc., (1990).
Step 1: Recognising statutory defences.
Under the Trademarks Act, 1999, certain recognised defences to infringement include: Honest and concurrent use — where two parties have used the mark honestly over time.
Acquiescence — where the proprietor has knowingly allowed use over time without objection.
Fair use — descriptive use or nominative use without implying origin.
Step 2: Analysing “prior adoption and use.”
While prior use can give rise to rights (especially against later users), it is not framed as a statutory defence to infringement in the same way as the above. Prior use establishes an independent right — it doesn’t excuse infringement if the infringer’s use starts after another party’s registration and lacks lawful justification.
Step 3: Eliminating other options.
(A), (B), and (D) are expressly recognised as defences. Only (C) is not “in itself” a statutory defence — though it can be relevant in priority disputes. \[ \boxed{\text{C}} \]
This question asks which of the four listed items is not, by itself, a recognised statutory defence to infringement of a registered trademark.
Since A, B, and D are each squarely recognised as defences and C operates as an independent right rather than a defence in the same sense, C is the one that does not fit.
Hence, the correct answer is C) prior adoption and use.