Answer: a. Japanese
Explanation: The group of people who were relocated and temporarily imprisoned despite being U.S. citizens were Japanese Americans. During World War II, in response to the Japanese attack on Pearl Harbor, the United States government forced over 120,000 people of Japanese ancestry, two-thirds of whom were American citizens, into internment camps. This policy was based on racial prejudice, and was a clear violation of the constitutional rights and civil liberties of these individuals.
The internment of Japanese Americans was a glaring exception to the otherwise tolerant policy in America. Despite a history of discrimination against various ethnic and racial groups, the United States had long prided itself on its commitment to freedom, equality, and democracy. However, the internment of Japanese Americans demonstrated that even in times of crisis, the government was willing to suspend the rights of certain groups of people based solely on their race or ethnicity.
In the decades since World War II, the internment of Japanese Americans has been widely recognized as a grave injustice and a stain on America's history. In 1988, the United States government formally apologized for the internment and offered reparations to surviving victims. The internment remains a powerful reminder of the dangers of racial prejudice and the importance of protecting the civil liberties of all Americans, regardless of their background or ancestry.