Option b is the correct answer. The Ashtadiggajas were eight Telugu poets who were patronized by Krishnadeva Raya, the greatest ruler of the Vijayanagara Empire. The poets were Allasani Peddana, Nandi Thimmana, Pingali Surana, Dhurjati, Ramaraja Bhushanudu, Tenali Rama Krishna, and Madayyagari Mallana. The Ashtadiggajas were known for their literary skills, and they produced some of the finest works of Telugu literature.