The correct answer is (a) Mavlunkar.
Maulana Abdul Kalam Azad was the first Speaker of the Lok Sabha. He was a freedom fighter and a prominent leader of the Indian National Congress. He was also the first Education Minister of India.
Maulana Azad was born in Mecca, Saudi Arabia, in 1888. He came to India at the age of 18 and joined the Indian National Congress. He was a close associate of Mahatma Gandhi and Jawaharlal Nehru. He played a key role in the freedom struggle and was imprisoned several times by the British government.
After independence, Maulana Azad was elected the first Speaker of the Lok Sabha. He served in this position from 1950 to 1956. He was a great orator and a powerful debater. He was also a scholar and a writer. He wrote several books on Islam and Indian history.
Maulana Azad died in 1958. He is remembered as one of the greatest leaders of India.
The other options are incorrect.
(b) Hukum Singh was a member of the Indian National Congress and a minister in the government of Uttar Pradesh. He was not the first Speaker of the Lok Sabha.
(c) B.D. Jatti was a member of the Indian National Congress and the Vice President of India. He was not the first Speaker of the Lok Sabha.
(d) V.V. Giri was a member of the Indian National Congress and the President of India. He was not the first Speaker of the Lok Sabha.