Lend lease
Because in ww2 the treaty of Versailles was suppose to stop the German from having a strong army and that led to hitler which became a dictator so he cranked up. An Air Force and England attacked not Britain so it lend lease
Source:google
The correct answer would be A) Battle of Britain.
Hope this helps! I can give you an explanation if you want.
7.8m questions
10.4m answers