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