Question

Who owns the book on subject U? 

• A. B
• B. E
• C. D
• D. C
• E.

Hint:

Look for clues about positions (top, bottom) to eliminate incorrect options. Often, this will help identify who owns which book.

Answer 1

The Correct Option is C

We are told that the book on subject U is neither owned by B nor A, and that D's book is at the bottom of the stack. Thus, D must own the book on subject U. All the conditions point to D as the correct answer. 
Thus, the correct answer is (c) D.