The answer to your question would be option A. Hitler's plan of taking over Europe ended.
Explanation:
In November 1942 the Soviet counteroffensive cut off the German supply lines, and the German forces which had numbered 800,000 and were taken down to 91,000 were left to surrender. Becase the German forces were outnumbered, Hitler had no option to give up, therefore, Hitler's plan of dominating Europe ended.
in In 1945 Stalingrad was officially proclaimed a Hero City of the Soviet Union for its defense of the motherland.