Prevent communism from spreading even further in Asia.
Communist troop sanctuaries were located in Cambodia, Nixon fearing the worse for the spread of communism as the Cold War was still in motion. Nixon assumed that the Viet Cong was using bases in Cambodia to attack the American's and South Vietnamese people during the Vietnam war.
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B. people should work together to better their society
<span>The answer is:
The Supreme Court had been striking down New Deal Programs as unconstitutional. </span>
I would say the correct answer is <span>D. The increase in food production that allowed more people to pursue education.
I don't think A is correct because peasants and the bureaucracy don't really have much to do with science or culture; B is also incorrect because the Song dynasty didn't have a caste system; C is incorrect because women at the time didn't really affect culture or science. This is why I believe D is the correct answer.
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