Answer:
Option D, the fifth century B.C.E, is the right answer.
Explanation:
Gautam Buddha was a monk, sage, philosopher and religious leader who founded Buddhism during the 6th century in India. The Buddhists regard him to be an enlightened mentor who attained full Buddhahood and accorded his perspicacity to help conscious beings end rebirth and affliction. It is believed that Buddha died in c. 483 or c. 400 BCE at the age of 80.