The "long march" of China was led by Mao Zedong so its C.
Imperialism can be characterized mainly by a country's acquisition and colonization of land. an imperialist country will often take new land by force, and imperialist countries often promote nationalist views.
Not 100% sure but I'm pretty sure siam was one of the only ones to escape colonization. look at effects on neighbouring countries?
B anti federalists supported it since the federalists thought the bill of rights was unnecessary