How did increased tensions between the United States and the Soviet Union
during the Cold War contribute to the rise of McCarthyism?
A. By convincing Americans that the United States needed to
fundamentally change its system of government
B. By leading Americans to more strongly support protecting
citizens' constitutional right to free speech
C. By increasing Americans' support for foreign policy actions meant
to limit the Soviet Union's influence
D. By increasing Americans' fears that any person with Communist
beliefs was a potentially dangerous enemy