Detailed explanation and options for the selected question.
Ashoka is known for his conversion to Buddhism after the Kalinga War. Option "Chandragupta Maurya" was the founder of the Mauryan Empire but did not convert to Buddhism. Option "Kanishka" was a Kushan emperor who promoted Buddhism but not in the same context as Ashoka. Option "Harsha" was an Indian emperor known for his support of Buddhism but did not undergo a similar conversion.