"Discovery of India" was written by Jawaharlal Nehru, "India Wins Freedom" by Maulana Abul Kalam Azad, "An Area of Darkness" by V.S. Naipaul, and "A Study of History" by Arnold J. Toynbee. Hence, the correct correspondence is:
(A)-(II), (B)-(III), (C)-(I), (D)-(IV).