-More people were killed in world war || than any other war in history
The answer is not (A), because London had been bombed multiple times by the German Luftwaffe, and the battle was commonly known as "Battle of Britain".
The answer is not (C), because civilians all across the world felt the impact of the war, from civilians in Nazi controlled countries that felt mistreated, to the Americans who felt the impact of the war effort on what they can buy, etc.
The answer is not (D), because the US did not suffer as much losses as some of the other countries.
hope this helps
