Which of the following most logically completes the argument

Which of the following most logically completes the argument below?
The expansion of large-scale farming in Africa and Asia has destroyed much of the
natural vegetation on which elephants have historically depended, forcing them to
turn to cultivated land to satisfy their enormous appetites. As a result, farmers have
lost millions of dollars worth of crops annually. Yet even if elephant sanctuaries were
created on a widespread basis to guarantee elephants sufficient natural vegetation, the
raiding would likely persist, since
A. when elephants forage for food, they typically travel in herds.
B. Foraging elephants have been known to cause substantial damage even to
plants that they do not eat.
C. Some of the land where crops have suffered extensive damage from elephants
has been allowed to return to its natural state.
D. Elephants tend to prefer cultivated crops to wild vegetation as a food source.
E. Elephant sanctuaries are usually created in areas that are rich in the natural
vegetation on which elephants have historically depended.
Answer:?