The correct answer is option 2, Kailash Satyarthi.
Option 1, Shantha Sinha, is not the correct answer. Shantha Sinha is an Indian social activist and academician, but she is not the founder of Bachpan Bachao Andolan (BBA).
Option 3, Aruna Roy, is also not the correct answer. Aruna Roy is an Indian social activist and a prominent member of the National Campaign for People`s Right to Information (NCPRI), but she is not associated with the founding of BBA.
Option 4, Anil Agarwal, is not the correct answer too. Anil Agarwal was an Indian environmentalist and founder of the Centre for Science and Environment (CSE), but he is not associated with the founding of BBA.
Kailash Satyarthi, on the other hand, is the founder of Bachpan Bachao Andolan (BBA), also known as the Save the Childhood Movement. BBA is a non-profit organization based in India that works towards the eradication of child labor and the rehabilitation of children who have been rescued from various forms of exploitation. Kailash Satyarthi, through BBA, has been instrumental in advocating for