What Was the Fate of the Manchu Dynasty

What was the fate of the Manchu dynasty?

A) The Manchu were deposed by European states and the American "Open Door" policy.
B) Under increasing foreign and domestic pressure, the Manchu convened a Congress, the Serene Gathering of the Middle Kingdom, to determine China's fate.
C) The Manchu were overthrown by Chinese nationalists led by Sun Zhongshan.
D) The Japanese deposed the Manchus during the Japanese conquest of Manchuria.
E) The Manchu lasted until the Communist victory in 1949 led by Mao Zedong.