<span>During Pax Romana, there were no major wars or
rebellions within the empire. As a result, commercial activity and trade
increased. Romans wers also able to make advances in architecture. The Romans
were great builders, and many of their structures have stood for centuries</span>
Answer:
The correct answer is D, <em>It increased the atmosphere of fear, because many Americans were charged with disloyalty to the United States, often without proof.</em>.
Explanation:
The wave of <em>Red Scare</em>, i.e., <em>extreme fear of Communism or anything that is thought to resemble of it</em>, 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.
