Correct Option: D

During the Gupta period, the great epics of Ramayan and Mahabharat were given the final form. Traditionally, the authorship of the Mahabharata is attributed to Vyasa. There have been many attempts to unravel its historical growth and com-positional layers. The oldest preserved parts of the text are thought to be not much older than around 4 BCE, though the origins of the epic probably fall between the 8th and 9th centuries BCE.