The correct option is B Rama was an Alwar, Krishna was a Nayanar
By the 7th century, two groups, Nayanars and Alwars, emerged in Tamil Nadu. Nayanars were Saivites, who worshipped Shiva. There were 63 Nayanars, and they were famous for their literature on Shiva. Alwars were Vaishnavites, who worshipped Vishnu. 12 Alwars saints developed literature on Vishnu and how to attain salvation through bhakti. The Nayanars and Alwars travelled from place to place composing devotional poems and songs.