Hi please hurry According to the overuse of resources theory, what caused the fall of the Kingdom of Kush?

a. Poor agricultural techniques led to the sudden collapse of the civilization.
b. Kush ites traded away all their gold, leaving them nothing valuable to trade.
c. The destruction of its gold and iron mines left the kingdom open to conquest.
d. The destruction of its forests and environment led to the collapse of the civilization.

The destruction of its forests and environment led to the collapse of the civilization

Explanation:

i did it and got it right so yw! :D

“the battle of stalingrad is not a turning point necessarily in strategic terms, because a lot more has to be done before the soviets can be certain of defeating germany,” says renowned world war ii historian richard overy. the germans had fought nearly a thousand miles across the soviet union to get to stalingrad.

i think they came to washington to protest