Raja Rammohan Roy founded the Brahmo Samaj in—

Correct answer: (c) 1828

Explanation

Raja Rammohan Roy founded a new society on 20 August 1828 under the name “Brahmo Sabha,” which later came to be known as the “Brahmo Samaj.” This society opposed idol worship and preached the worship of one Brahman. It was a group of people who believed in the unity of God and stayed away from idol worship. In the Brahmo Samaj, social customs and religious rituals were not given much importance. It emphasized love for all human beings without considering colour, caste, or creed, and stressed service to humanity as the highest way of life. Therefore, option (c) is correct.