The correct answer is (a) G.V. Mavalankar.
Gopal Krishna Vyankatesh Mavalankar (1883-1956) was an Indian independence activist and politician who served as the first Speaker of the Lok Sabha, the lower house of the Parliament of India, from 1950 to 1956. He was a member of the Indian National Congress and a close associate of Mahatma Gandhi. He was born in Ahmedabad, Gujarat, and educated at the Gujarat University. He started his career as a lawyer and later joined the freedom struggle. He was imprisoned several times by the British government. After independence, he was elected to the Constituent Assembly of India. He was also elected to the first Lok Sabha in 1952. He was unanimously elected as the Speaker of the Lok Sabha. He was a highly respected and impartial Speaker. He died in 1956.
Sardar Hukam Singh (1892-1963) was an Indian politician who served as the first Chief Minister of Punjab from 1947 to 1952. He was a member of the Indian National Congress and a close associate of Mahatma Gandhi. He was born in Malerkotla, Punjab, and educated at the Government College, Lahore. He started his career as a lawyer and later joined the freedom struggle. He was imprisoned several times by the British government. After independence, he was elected to the Constituent Assembly of India. He was also elected to the first Lok Sabha in 1952. He was a member of the opposition party, the Jan Sangh. He died in 1963.
N. Sanjeeva Reddy (1913-1999) was an Indian politician who served as the third President of India from 1977 to 1982. He was a member of the Indian National Congress and a close associate of Jawaharlal Nehru. He was born in Bellary, Karnataka, and educated at the University of Mysore. He started his career as a lawyer and later joined the freedom struggle. He was imprisoned several times by the British government. After independence, he held several ministerial positions in the government of India. He was also elected to the Lok Sabha and the Rajya Sabha. He was elected as the President of India in 1977. He died in 1999.
Bali Ram Bhagat (1922-2004) was an Indian politician who served as the Speaker of the Lok Sabha from 1980 to 1985. He was a member of the Indian National Congress and a close associate of Indira Gandhi. He was born in Bikaner, Rajasthan, and educated at the University of Rajasthan. He started his career as a lawyer and later joined the freedom struggle. He was imprisoned several times by the British government. After independence, he held several ministerial positions in the government of India. He was also elected to the Lok Sabha and the Rajya Sabha. He was elected as the Speaker of the Lok Sabha in 1980. He died in 2004.