The correct answer is (a) Brahma Samaj.
The Brahma Samaj was a Hindu reform movement founded in 1828 by Raja Ram Mohan Roy. It was one of the first Hindu reform movements to challenge the authority of the Vedas and the Brahmanical priesthood. The Brahma Samaj advocated for a more rational and ethical interpretation of Hinduism, and for the equality of all Hindus, regardless of caste or gender.
The Atmiya Sabha was a Hindu reform society founded in 1815 by Raja Ram Mohan Roy. The Atmiya Sabha was a precursor to the Brahma Samaj, and shared many of its goals. However, the Atmiya Sabha was more focused on social reform, while the Brahma Samaj was more focused on religious reform.
The Brahma Sabha was a Hindu reform society founded in 1820 by Raja Ram Mohan Roy. The Brahma Sabha was a short-lived organization, and was disbanded in 1828 when Roy founded the Brahma Samaj.
The Tatvabodhini Sabha was a Hindu reform society founded in 1839 by Debendranath Tagore. The Tatvabodhini Sabha was a continuation of the Brahma Samaj, and was led by Tagore after Roy’s death. The Tatvabodhini Sabha was instrumental in the spread of the Brahma Samaj’s ideas throughout India.