Explain the differences in policy- making between the US and Soviet
Union and how that led to the creation
of NSC-68.

Answere:

National Security Council Paper NSC-68 (entitled “United States Objectives and Programs for National Security” and frequently referred to as NSC-68) was a Top-Secret report completed by the U.S. Department of State’s Policy Planning Staff on April 7, 1950. The 58-page memorandum is among the most influential documents composed by the U.S. Government during the Cold War, and was not declassified until 1975.

i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.

if it were me, i would pick c. c is the best answer because it's basically saying go on a non-violent strike for india