The correct answer is: C. The year 1557
The Satnami sect was founded in 1557 by Guru Ghasidas. He was a social reformer who preached against the caste system and the oppression of the lower castes. He also emphasized the importance of education and self-reliance. The Satnami sect is a syncretic religion that combines elements of Hinduism, Islam, and Buddhism. It is a major religion in the Indian state of Chhattisgarh.
Option A is incorrect because the Satnami sect was founded in 1557, not 1457.
Option B is incorrect because the Satnami sect was founded in 1557, not 1600.
Option D is incorrect because the Satnami sect was founded in 1557, not 1657.