How did McCarthyism influence Cold War attitudes in the United States?

A.It gave relief to Korean War soldiers and their families by allowing them better communication with their loved ones.

B.It undermined the government's authority by giving voice to Americans who supported Communism.

C.It increased stereotypical thinking and arguably fueled violence against American women and minorities.

D.It increased the atmosphere of fear, because many Americans were charged with disloyalty to the United States, often without proof.

The correct answer is D, It increased the atmosphere of fear, because many Americans were charged with disloyalty to the United States, often without proof..

Explanation:

The wave of Red Scare, i.e., extreme fear of Communism or anything that is thought to resemble of it, led by Republican Senator Joseph McCarthy (1908-1957) that is known as McCarthyism was the period in early 50s when McCarthy frequently used reports of supposedly Communist activities to be the center of spotlight and to persecute people despite their civil rights.

In 1954 he started to be more intensely criticized by his methods and became progressively clear that he persecuted people without proof and attacked Americans' political rights. Despite general knowledge about his methods, two thousand people were fired because of his persecution.