Hint: Muslim league was a political group originally named as all India Muslim league which demanded a separate Muslim nation at the time of independence in 1947. The party was founded in 1906 to protect the rights of Indian Muslims in British India. The founding leader was the first governor-general of independent Pakistan.
Complete answer: The Muslim league was founded by Muhammad Ali Jinnah. At first, the party was encouraged and supported by the Britishers but later the party demanded self-government for India in 1913.
For decades Muhammad Ali Jinnah and other leaders of the party have demanded and worked towards the Hindu Muslim unity in the nation however it was until 1940 that the party called for an independent and separated nation for Muslims. Demands for a separate nation of Muslims were raised out of the fear that soon after independence India would become a Hindu majority nation and the rights and interest of Muslims would be compromised.
-Mahatma Gandhi was the lawyer and anti-colonial nationalist. After returning from South Africa he led many national movements in India against the operation of Britishers and finally gave India its due freedom in 1947. He was the leader of the Indian National Congress.
-Sir Syed Ahmed Khan was an Islamic reformer and philosopher from the 19th century. During his life, he set up many organisations and institutions for Muslim education and upliftment. He is also considered as the founder of Pakistan as he supported and propounded the theory of Two nation theory and feared that Muslim interest would be undermined in the Hindu majority nation. However, he is known for communal harmony and unity between Hindu and Muslims.
-Abul Kalam Azad was an Indian scholar and independence activist and senior leader of Indian National Congress during the independence movement. He supported many movements during his life and was appointed as a minister of education in independent India.
Therefore, option A is correct.
Note: In the elections of 1954 the Muslim league lost its power in East Pakistan which resulted in the creation of an independent nation known as Bangladesh. Afterwards, the party split into various factions and by the time of the 1970s, it disappeared altogether.