M.G. Ramachandran (MGR), a popular film actor, founded the:

DMK
AIADMK
Congress Party
Justice Party

The correct answer is: b) AIADMK.

M.G. Ramachandran (MGR), a popular film actor, founded the All India Anna Dravida Munnetra Kazhagam (AIADMK) in 1972. The AIADMK is a regional political party in India, based in the state of Tamil Nadu. The party was founded by MGR after he left the Dravida Munnetra Kazhagam (DMK), which he had co-founded with C.N. Annadurai in 1949. The AIADMK has been the ruling party in Tamil Nadu for most of the time since its inception.

The DMK is a regional political party in India, based in the state of Tamil Nadu. The party was founded by C.N. Annadurai in 1949. The DMK is the main opposition party in Tamil Nadu.

The Congress Party is a national political party in India. The party was founded in 1885 by Allan Octavian Hume. The Congress Party is the oldest political party in India.

The Justice Party was a political party in India, active in the early 20th century. The party was founded in 1916 by P.T. Rajan. The Justice Party was a regional party based in the state of Madras (now Tamil Nadu).