I believe it is the letter A direct object
Answer:
Roosevelt’s Executive Order No. 9066 was based on the assumption that Japanese Americans posed a threat to national security. (option C).
Ten weeks after the Japanese bombed Pearl Harbor, U.S. President Franklin D. Roosevelt signs Executive Order 9066, authorizing the removal of any or all people from military areas “as deemed necessary or desirable.” By June, over 110,000 Japanese Americans were relocated to remote internment camps established by the U.S. military in scattered locations accross the country.
Answer:
I think it was D. Dramatic Irony I haven't read that book in a long time tho