Answer :
The answer is D. His govern was great. He joined all the subcontinent. Ashoka changed over to Buddhism around 263 BCE. He is associated with Ashoka columns and declarations, sending Buddhist ministers to Sri Lanka and Central Asia, and building up landmarks denoting a few noteworthy destinations in the life of Gautama Buddha.
The correct answer is option D. Ashoka is known as the monarch of india who converted to Buddhism and encouraged righteous living.
Ashoka was the ruler of Maurya Empire who worked for the welfare of the people. He followed the policies of non-violence and encouraged people to do good, in a way to approach righteous living. He was the one who popularized Buddhism not only in India but its neighboring kingdoms.