Which of the Following Statements Regarding the Internment of Japanese

Which of the following statements regarding the internment of Japanese Americans during World War II is true? ​

A) Several incidents of Japanese espionage,including some carried out by Japanese Americans,convinced FDR to resort to the internment option.
B) FBI director J.Edgar Hoover claimed the FBI had evidence that the Japanese Americans were an immediate threat to U.S.security.
C) ​Nisei,or Japanese Americans who born in the United States,were exempt from the Japanese American internment,but many went voluntarily to be with their families.
D) ​Japanese internment camps were erected in the deserts of California and Arizona,the mountains of Wyoming,and the scrublands of Utah and Colorado.