The correct answer is: c) Captain Williamson Sangma
Captain Williamson Sangma was a prominent leader in the Hill State Movement. He was the founder and first Chief Minister of Meghalaya. He was also the President of the All Party Hill Leaders Conference (APHLC), which was the main political party in the Hill State Movement.
U Tirot Sing was a Khasi freedom fighter who led the Khasi revolt against the British East India Company in the early 19th century. He is considered to be a national hero in Meghalaya.
P.A. Sangma was a politician from Meghalaya who served as the 11th Speaker of the Lok Sabha and the 12th Governor of Nagaland. He was also the President of the Nationalist Congress Party (NCP).
B.B. Lyngdoh was a politician from Meghalaya who served as the 2nd Chief Minister of Meghalaya. He was also the Governor of Mizoram and the Governor of Arunachal Pradesh.
The Hill State Movement was a political movement that was started in the 1960s by the people of the hill states of North East India. The movement was aimed at achieving greater autonomy for the hill states from the Government of India. The movement was successful in achieving the creation of the state of Meghalaya in 1972.