Answer:
B. It opened a second front in western Europe that Germany had to face, turning the tide of the war
Step-by-step explanation:
The role of the D-Day invasion in World War II was that "It opened a second front in western Europe that Germany had to face, turning the tide of the war."
The D-Day invasion was the Allied invasion of Normandy in France to fight the Nazis. It occurred on June 6, 1944, and involves about 156,000 American, British and Canadian forces. The battle of Normandy eventually led to the beginning of Germany's loss in the war, as they face the Soviets in the East and other Allies in the West. The result ultimately turns the tide of the war and the loss of Germany was confirmed months after.