【单选题】听力原文: The UN eased its ban on the ivory trade, permitting just over 30 tons from Namibia and Zimbabwe to be sold to Japan. The two African countries, which argue that they have more elephants than the...
A.
In some African countries, there are more elephants than can be fed.
B.
Large numbers of elephants are killed as the trade of ivory thrives.
C.
Trading of ivory in every African country is permitted.