2. which of the following statements best summarizes the cause of a nationalist revolution in central and south america?
a. the rise of fascism led to the change in political leadership
b. the nationalists desire an end to foreign dependence
c. america's good neighbor policy supported revolutionary movements
d. an international trade gap resulted in nationalism

I  think the answer is b. the nationalists desire an end to foreign dependence. 

Central America and South America did have their common colonizer, As part of the thirteen colonies of Britain.

South and North America tried their best to fight their mother colonizer who made high tax impositions and they won the war. But, the South did not agree with some other plans of the North which may affect their economy this pushed to Civil War.

Latin America also made its own uprising and national struggle which became their motivation  to finally have their own national freedom