The statement that best evaluates why President Franklin D. Roosevelt issued Executive Order 9066 is:
Roosevelt wanted to create a secure military area along the Pacific coast that was safe from enemy sabotage and attack.
While the order did lead to the incarceration of Japanese Americans, the rationale presented at the time by the Roosevelt administration was focused on national security concerns in the context of World War II, particularly fears of espionage and sabotage following the attack on Pearl Harbor.