The correct answer is: B. Vasumitra
Vasumitra was a Buddhist scholar who lived in the 2nd century CE. He is best known for presiding over the Fourth Buddhist Council, which was held in Kashmir during the reign of Kanishka. The council was convened to resolve doctrinal disputes and to codify the Buddhist scriptures.
Parsva was a Buddhist monk who lived in the 1st century BCE. He is considered to be the founder of the Yogacara school of Buddhism.
Nagarjuna was a Buddhist philosopher who lived in the 2nd century CE. He is considered to be the founder of the Madhyamaka school of Buddhism.
Sudraka was a Sanskrit playwright who lived in the 2nd century CE. He is best known for his play “Mrichchhakatika” (The Little Clay Cart).