Study the following information carefully and answer the given questions:(i) There are six different books on different subjects P, Q, R, S, T and U. These books are kept one above the other on a shelf. These books belong to six different persons - A, B, C, D, E and F. It is not necessary that the order of these books and persons are the same.(ii) Only book of subject Q is kept between the books of subject P and T only book of subjects is kept between books of subject P and U. The book of subject R is immediately above the book of subjects T.(iii) C's book is kept on the top. A does not have books on subjects T and S. The book on subject P belongs to F. The book on subject U belongs neither to B nor to A. D's book is kept at the bottom.The book on which of the following subjects is kept on the top?