The book on which of the following subjects belongs to A?
T
We are given that the book on subject Q is placed between the books on subjects P and T, while C's book is at the top. Furthermore, the book on subject P belongs to F. The key clue is that the book on subject Q must be owned by A because it is positioned between P and T, and A is the only person left with a suitable placement based on the given conditions.
Thus, the correct answer is (a) Q.
