(A) 1930
(B) ** 1931
(C) 1932
(D) 1933
EXPLANATIONS BELOW
Concept note-1: -On September 18, 1931, an explosion destroyed a section of railway track near the city of Mukden. The Japanese, who owned the railway, blamed Chinese nationalists for the incident and used the opportunity to retaliate and invade Manchuria.
Concept note-2: -In 1931, the Japanese Empire controlled the South Manchuria Railway. In the September the Japanese claimed that the Chinese had sabotaged the railway. Using this pretense the Japanese army invaded and over ran Manchuria with Japanese forces.
Concept note-3: -The Manchurian Crisis 1931-1933 followed the Mukden Incident in which Japanese rail tracks were destroyed in an explosion. Claiming that it was saboteurs, the Japanese responded with force, taking control of the Chinese province of Manchuria.
Concept note-4: -Seeking raw materials to fuel its growing industries, Japan invaded the Chinese province of Manchuria in 1931.
Concept note-5: -The events in Manchuria became an international crisis because Japan, who was in the League of Nations, invaded Manchuria. What made this even more wrong than it already was, was that Japan was a permanent member of The League. Therefore it damaged The League’s reputation.