Option b is the correct answer. A. Varahamihira - Brihat-Samhita: Varahamihira was a 6th-century astrologer-astronomer who lived in Ujjain. He wrote the Brihat-Samhita. It is an encyclopedia that covers various topics such as astronomy, astrology, geography, architecture, gemology, etc. B. Vishakhadatta - Devi-Chandraguptam: Vishakhadatta was a 4th-century dramatist and poet who wrote the Devi-Chandraguptam. It is a play that narrates the story of Chandragupta II's accession to the throne with the help of his mother and the minister Chanakya. C. Sudraka-Mrichchha-Katikam: Sudraka was a playwright who wrote the Mrichchha-Katikam. It is a romantic comedy that depicts the love affair of Charudatta, a poor Brahmin, and Vasantasena, a rich courtesan. D. Bilhana - Vikramankadevacharita: Bilhana was an 11th-century poet and historian. He wrote the Vikramankadevacharita, a biography of the Chalukya king Vikramaditya VI.