roosevelts executive order no. 9066 was based on\n○ evidence that all japanese americans were plotting to…

roosevelts executive order no. 9066 was based on\n○ evidence that all japanese americans were plotting to fight the us within its borders.\n○ past experiences of japanese americans causing civil unrest in the united states.\n○ the assumption that japanese americans posed a threat to national security.\n○ written reports that japan was recruiting american citizens to spy for them.
Answer
Answer:
the assumption that Japanese Americans posed a threat to national security.
Brief Explanation:
There was no real evidence of plotting or civil unrest. The order was mainly due to unfounded security fears.