The correct answer is B.
At the end of the Second World War, the Indian leaders denied their cooperation in the National Congress, because the British government refused to grant them a greater degree of independence, in exchange for their support in the war.
In 1942 Mahatma Gandhi announced the beginning of anti-imperialist actions, through a new day of civil disobedience with the objective that the British withdrew from India. The British responded with a great repression by imprisoning many leaders.