Step 1: Understanding the lists.
Bak I lists the titles of linguistic and ethnographic works, while Bak II lists the authors associated with each. The task is to correctly match them.
Step 2: Correct Matching.
- (A) Notes on the Languages... → (III) William Robinson — Correct, he studied tribal languages of Assam.
- (B) On the Aborigines of North Eastern India → (I) B.H. Hodgson — Correct, he was a pioneer ethnologist.
- (C) Comparison of Indo-Chinese Languages → (IV) Nathan Brown — Correct, focused on linguistic similarities.
- (D) A Comparative Dictionary of the Languages of India and High Asia → (II) W.W. Hunter — Correct, known for compiling linguistic and cultural dictionaries.
Step 3: Verification.
Each title matches the author known for that specific linguistic contribution.
Step 4: Conclusion.
Hence, the correct matching is A–III, B–I, C–IV, D–II.