Question

Which description best explains what the Red Scare was?

The Red Scare was a period of fear and anxiety when nations became concerned about increasing Communist influences.
The Red Scare was a summer of tension and violence between white people and African Americans.
The Red Scare was a pandemic that quickly spread across the nation and killed many young and healthy people.
The Red Scare was an incident when the United States Almost Entered a war against Russia.

Answer 1

"The Red Scare was a period of fear and anxiety when nations became concerned about increasing Communist influences."

It refers especially to two U.S. episodes (after World War I and during the Cold War/McCarthy era) marked by fear of communist infiltration, political repression, and anti-communist investigations.