Explanation:

- Option 1: Satyashodhak Samaj

- Founded by Jyotirao Phule in 1873 in Maharashtra.

- Aimed to fight social discrimination and uplift lower castes.

- Option 2: Aligarh Movement

- Initiated by Sir Syed Ahmed Khan in 1875.

- Aimed at reforming education among Muslims in India.

- Option 3: Brahma Samaj

- Founded in 1828 by Raja Ram Mohan Roy in Kolkata.

- Focused on reforming society by ending practices like sati and child marriage.

- Option 4: Arya Samaj

- Founded by Swami Dayananda Saraswati in Bombay in 1875.

- Aimed at reviving Vedic teachings and eradicating social evils.