Answer: a,c this is because they are important
Germany kept attacking us with submarines.
Dropping the bombs on Hiroshima and Nagasaki were not a military necessity because from other reports, the Japanese were about to surrender anyway. It was justifiable because we were scared and we acted because we were threatened.
<span> B. nationalism, if you need explanation just ask! :)</span>
I believe the correct answer is religious beliefs. B , C, and D, don't make any sense.
Hope this helps!! (: