The most famous Indo-Greek ruler of India, famous for his sense of Justice and dialogues with a Buddhist monk Nagasena (as described in the Buddhist work Milinda Panho) was

Answer: Option B

Menander was a Greek dramatist and the best-known representative of Athenian New Comedy. He wrote 108 comedies and took the prize at the Lenaia festival eight times. His record at the City Dionysia is unknown but may well have been similarly spectacular. Menander was famous for his sense of Justice and dialogues with a Buddhist monk Nagasena (as described in the Buddhist work Milinda Panho).