(A) ** 1940
(B) 1941
(C) 1941-2
(D) 1939
EXPLANATIONS BELOW
Concept note-1: -The Battle of Britain took place between July and October 1940. The Germans began by attacking coastal targets and British shipping operating in the English Channel. They launched their main offensive on 13 August. Attacks moved inland, concentrating on airfields and communications centres.