How did the Mukden Incident advance Japanese imperialism?
A. It preoccupied the French military and let Japan more easily
conquer French Indochina.
O B. It allowed the Japanese navy to gain confidence and take over the
major Chinese port of Shanghai.
C. It proved Japan's military strength and convinced the Soviet Union
to become Japan's ally.
D. It gave Japan an excuse to retaliate against the Chinese and gain
control of Manchuria.