Answer:
B. was an embarrassment to his party by 1954.
Explanation:
In 1950s, Untied States experienced the 'Red Scare' . red Scare Is a fear of communist infiltration to United States. At that time, many people believed that soviet Union has sent its agent all across the world in order to spread communistic ideology into United States.
Joseph McCarthy publicly accused a lot of people to be a Soviet Union's spy during this time period. But the vast majority of his accusations were made without any proof. But despite not having any proof, McCarthy keep continue his accusations toward his political opponents.
This made John McCarthy and the party that he represented look childish and foolish,