Step 1: Recall definitions of word formation processes
- Calque: A loan translation where the components of a foreign word are translated literally. Example: worldview from German "Weltanschauung". Hence, P \(\rightarrow\) iv.
- Eponym: A word derived from a person's name. Example: braille from Louis Braille. Hence, Q \(\rightarrow\) i.
- Blend: Combining parts of two words. Example: instagram (instant + telegram). Hence, R \(\rightarrow\) ii.
- Coinage: Inventing a completely new word, often a brand. Example: google. Hence, S \(\rightarrow\) v.
- Borrowing: Adopting words directly from another language. Example: karaoke from Japanese. Hence, T \(\rightarrow\) iii.
Step 2: Verify against options
- The correct mapping is: P-iv, Q-i, R-ii, S-v, T-iii.
- This matches option (A).
\[
\boxed{\text{Correct Answer: (A)}}
\]