What was the philosophy presented by Pt. Deen Dayal Upadhyay called?

The correct answer is option (3) - Integral humanism

Deen Dayal Upadhyaya joined The Rashtriya Swayam Sevak Sangh (RSS) in 1937, became a pracharak, & served as a full-time RSS worker since 1942. He was one of the founding members & the General Secretary of the Bharatiya Jan Sangh (1951- 67). He introduced the concept of ‘Integral Humanism’ which followed the tradition of 'Advaita Vedanta’ (introduced by Adi Shankara).