The correct answer is C. Chaitanya Mahaprabhu.
Chaitanya Mahaprabhu (1486-1534) was a Bengali saint and reformer who popularized the Krishna Cult. He was born in Nabadwip, Bengal, India, into a Brahmin family. He was a brilliant scholar and a gifted poet. He renounced his worldly life at the age of 24 and began to preach the message of love and devotion to Krishna. He traveled extensively throughout India, spreading his message of love and devotion. He is considered to be one of the most important figures in the history of Hinduism.
A. Vallabhacharya was a Hindu philosopher and reformer who lived in the 16th century. He was the founder of the Vallabhacharya Sampradaya, a Vaishnava sect that is centered on the worship of Krishna.
B. Madhavacharya was a Hindu philosopher and theologian who lived in the 13th century. He was the founder of the Dvaita Vedanta school of philosophy, which is one of the six major schools of Hindu philosophy.
D. Nimbarkacharya was a Hindu philosopher and theologian who lived in the 12th century. He was the founder of the Dvaitadvaita school of philosophy, which is a syncretic school of thought that combines elements of both Dvaita Vedanta and Advaita Vedanta.