Which two arguments did the Supreme Court use to uphold the constitutionality of korematsu's internment

The two principal arguments that the court take into account in favor of korematsu in his case against the United States are that Korematsu was in fact an American citizen, and that he did not committed any crime but living in America during World War II. Korematsu did not relocate when the order was given because he was born in the United States, while their parents that attended the relocation were born in Japan.

A. Due to the war, there was not enough time to hold trials or hearings before sending people to internment camps.

B. The military had a legitimate need to protect against espionage and sabotage