The government wasn't able to control what the states did, because they had too much autonomy. So...the answer would be A!
The assembly line would be my first choice.
Answer:
Summary. In the 1930s, the Japanese controlled the Manchurian railway. In September 1931, they claimed that Chinese soldiers had sabotaged the railway, and attacked the Chinese army. By February 1932, the Japanese had conquered the whole of Manchuria.
A major neutral country was, as an example, Yugoslavia (the leader non-aligned movement), which supported trade relations with both NATO and the Warsaw Pact. In the later years of the Cold War, China, became mostly neutral (though some may say that they became more Western Aligned). Throughout the Cold War, India officially didn't join any alliance, however they were often supported by the Soviet Union in conflicts against China or Pakistan.