Question

Who among the following possesses the book on subject T? 

• A. B
• B. E
• C. C or E
• D. B or E
• E.

Hint:

Consider relative positions and exclusions when arranging books. Often, multiple answers are possible, but careful analysis helps to narrow it down.

Answer 1

The Correct Option is D

Since the book on subject T is between the books on subjects P and Q, and C's book is at the top, this implies that B or E could possess the book on subject T. Given that C's book is at the top and B or E are the only ones left to satisfy the conditions for subject T, it follows that B or E could be the owners. 
Thus, the correct answer is (d) B or E. 

Answer 2

We already know A owns the book on subject Q, and F owns the book on subject P. The book on subject T sits between the books on P and Q, and C's book is placed at the top of the stack.

1. Option A (B): Naming only B alone would ignore that E is equally consistent with the given conditions, so this is too narrow.
2. Option B (E): Naming only E alone similarly ignores that B fits the conditions just as well, so this is too narrow too.
3. Option C (C or E): C's book is already fixed at the top of the stack, so C cannot also be the owner of T; this option is wrong.
4. Option D (B or E): With A on Q, F on P, and C fixed at the top, both B and E remain equally free to hold the book on T, so either is possible.

Since the given conditions do not distinguish between B and E for subject T, both remain valid possibilities.

Hence, the correct answer is B or E.