The correct options are
A Senguttuvan
B Nidunjeral Adan
Nidunjeral Adan and Senguttuvan were two famous Chera rulers. Kadungon was a Pandya king who revived the Pandya rule in South India in the 6th century CE. Mayuravarma, a Kannada scholar and a native of Talagunda (in modern Shimoga district), was the founder of the Kadamba Kingdom of Banavasi.