Step 1: Understand the Problem.
We are tasked with matching words from Column - I to their antonyms in Column - II.
Step 2: Analyze Each Word and Its Antonym.
(A) (a) Hearsay:
- Hearsay means information that is not verified or based on rumor.
- Its antonym is (IV) authentic, which means verified or reliable.
(B) (b) Obscured:
- Obscured means something that is hidden or unclear.
- Its antonym is (I) clarified, which means made clear or understandable.
(C) (c) Fall:
- Fall means to descend or drop.
- Its antonym is (II) ascent, which means to rise or go upwar(D)
(D) (d) Dormant:
- Dormant means inactive or not functioning.
- Its antonym is (III) active, which means functioning or energeti(C)
Step 3: Match the Options.
From the analysis above, the correct matches are:
\[
\text{a-IV, b-I, c-II, d-III}
\]
This corresponds to Option (A)