Why did France and the United States fight wars in Vietnam?
Options:
A. France wanted to stop decolonization; The U.S. tried to stop France
B. France wanted to make Vietnam communist; The U.S. wanted to help France
C. France wanted to stop decolonization; The U.S. wanted to prevent the rise of communism
D. France wanted to prevent the rise of communism; The U.S. wanted to stop decolonization