Was president roosevelt justified in ordering executive order 9066, which resulted in the internment of japanese american citizens ?

Despite administering the Executive Order 9066 to Japanese, it was, ironically, condemned almost 70 percent of imprisoned Japanese but American Citizens. It was supposed to be the first blow of the US to the Japanese after declaring war and it resulted to incarceration of 120,000 Japanese. They were brought in wartime camps and suspend the their rights under Fifth Amendment.

Islam was founded in the same region

The answer should be b.