Option a is the correct answer. Saundarananda was a poem composed by Ashvaghosa. He is believed to have been the first Sanskrit dramatist and is considered the greatest Indian poet prior to Kālidāsa. He wrote Saundarananda in the 1st century CE, during the reign of King Kanishka of the Kushan Empire. The poem has the theme of conversion of Nanda, Buddha's half-brother, who was deeply in love with his wife Sundari and with the worldly pleasures. The first half of the work describes Nanda's life, and the second half of the work describes Buddhist doctrines and ascetic practices It also reflects Aśvaghosa's mastery of Sanskrit language and poetic devices.