Question

I am fully convinced of the integrity of my colleagues.

• A. Fully convincing of
• B. Fully convincing about
• C. Fully convincing of
• D. No correction required

Hint:

Remember: "Convinced of" = certainty; "Convincing" = persuading.

Answer 1

The Correct Option is D

The phrase "fully convinced of" is grammatically correct and idiomatic. Options (a), (b), and (c) are incorrect because "convincing" refers to persuading others, while "convinced" refers to being certain oneself. \[ \boxed{\text{No correction required}} \]

Answer 2

Apply a simple active/passive-sense test: does the subject "I" perform the persuading, or does the subject hold a settled belief?

1. Option A: "convincing" describes the act of persuading someone else; "I am fully convincing of..." wrongly implies the speaker is the one doing the persuading, which is not the intended meaning.
2. Option B: the same problem applies here, and additionally "convincing about" is not standard idiomatic usage in this context.
3. Option C: repeats the same error as option A, incorrectly using the active "convincing" instead of the passive "convinced."
4. Option D: "convinced of" correctly shows the speaker holding a firm belief about someone else's integrity, which is exactly the intended sense.

Since the original sentence already uses "convinced of" correctly, no change is needed.

Hence, the correct answer is No correction required.