According to the Case in Point on Saving the Elephant

According to the Case in Point on Saving the Elephant, granting exclusive and transferable property rights in elephants to the villagers of Botswana, Zimbabwe, and Namibia in southern Africa:

A) led to exclusive and transferable hunting licenses, which allowed a few hunters to kill some elephants.
B) may have been responsible for the over hunting of elephants in those countries.
C) resulted in extinction of elephants in those countries.
D) all of the above are true.