What was known as Hitler's Final Solution?

A.the genocide of European Jews
B.the arrival of Allied soldiers on the shores of Normandy
C.the invasion of Germany by the Allies
D.the invasion of the Soviet Union by Germany

Please help!

2 answers

I think it is either A or D
A.

By the way.

The arrival of Allied soldiers on the shores of Normandy was:

Operation Overlord

The invasion of Germany by the Allies was:

Operation Veritable

Operation Grenade

Operation Lumberjack

and

Operation Undertone

The invasion of the Soviet Union by Germany was:

Operation Barbarossa