Because they were taking Africa’s recourses.
Answer:
C. Joint operations between the Allies drove the Germans out of the occupied territories.
Explanation:
In Africa the Americans learned that the Germans were still fighting well and hard. After the Germans and Italians were pushed out of Africa
The invasion of Sicily in 1943 affected Hitler's thinking as he called off the faltering German Summer Offensive in Russia to move SS Armored divisions to Northern Italy to backstop the defense.
This created an avenue for the allied forces leading to the success of them in their sorjourn in North Africa.
They made everything more easier. It was possible for them to carry large loads of resources from all over the world back to manufacturing plants in England, for example. They were also sturdy and lasted longer than ships made out of wood, and they could also use fuels to go instead of wind which meant that they could go faster and safer.