The spread of Buddhism in the northern Chinese "barbarian" courts provided legitimacy by espousing another option for philosophy<span> that could counter criticisms of the Han Chinese who favored classical learning. A big part of north China was dominated by the</span> Xianbei<span> tribe</span>. Buddhist monks became advisers to the rulers of these barbarian tribes. Buddhist monks also got a big support from the rulers of various barbarian states.
Explanation: The answer is C because all of the revolutions that you said, the people all wanted a change in government, but the government is resistant to change and they quell rebellions of people who oppose them.
Passed on March 11, 1941, this act set up a system that would allow the United States to lend or lease war supplies to any nation deemed "vital to the defense of the United States."