Passage of the mccarran act was related to which of these?
a. vietnam war
b. marshall plan
c. truman doctrine
d. second red scare

The correct answer is D) Second Red Scare.

The McCarran Act was passed in 1950, a few years after the conclusion of World War II. At this time, the United States was going through the Second Red Scare. American citizens and the federal government feared the spread of communism on a domestic and international scale. To ensure that communist influences didn't infiltrate the American government or other institutions, the McCarran Act was passed. This made communist organizations register with the American government for surveillance purposes.

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

i just did something on this guy a few days a go give me two minutes to find it in my notes.