Why did Gandhi support the Khilafat movement?

• A. Because the British had fulfilled the promises made to the Congress after the First World War.
• B. Because Gandhi wanted both Hindus and Muslims to go along in the national movement.
• C. Because the non-cooperation movement of the Congress was slowly coming to an end.
• D. Because the Muslims said that if the Congress will support the Khilafat movement, then only the Muslims will join the non-cooperation movement.