Which of the following was one of India's most significant achievements during the classical era? A. The conquest of nearly all of Asia, including Japan B. The foundation of Confucian philosophy C. The practice of monotheism D. The preservation of history through the Ramayana
It would be letter D. The preservation of history through the Ramayana. Ramayana is an Indian epic about a struggle of a divine prince who is Rama to save his wife Sita from Ravana the demon king. It was one of largest ancient epics in history and preserved the culture and history of India in the epic.