The correct option is B Muslim League
Deliverance Day was Muslim League's observance of December 22, 1939 as a mark of relief on the resignation of all provincial Congress Ministries of British India. They resigned in mass protesting the Viceroy’s decision to make India a party to the Second World War without duly consulting Indians. The Congress criticised this move of the League and Mahatma Gandhi appealed to Jinnah to desist from observing this day.