The correct options are
A Allamma Prabhu
B Kinnari Bommiah
C Molige Maraiah
Vachanas are simple poetic compositions. The Vachanas written in simple Kannada could reach the common people. Through Vachanas, the vachanakaras tried to identify the problems inherent in the society of their times. Allamma Prabhu, Akkamahadevi, Siddarama, Molige Maraiah, Ambigara Chawodaiah, Madivala Machaiah, Madara Chennaiah, Haralaiah, Kinnari Bommaiah and many others, were the important Vachanakaras. They contributed a lot to society, culture and literature.