"Satyashodhak Samaj (Truth Seekers Society) was founded in which year?"

1873

The correct answer is Option 2: 1873

Jotirao Govindrao Phule denounced the injustice of the caste system and scorned its rules of purity and pollution. In 1873 he founded the Satyashodhak Samaj (Truth Seekers Society), which was devoted to securing human rights and social justice for low-caste people.