Pandas are rapidly disappearing from the wild. Therefore in order to, preserve the species, existing pandas should be captured and placed in zoos around the world which of thefollowing statements, if true, casts most doubt on the conclusion drawn above?  

A    when in captivity, pandas typically produce more young than they do in their native habitat

B    newborn pandas in zoos are not likely to die from infectious diseases,newborn pandas in the wild are likely to die from these diseases

C    Many zoos are eager to increase their stock of rare and exotic animal but there are not enough pandas for all the zoos that want one.

D    Sufficient of bamboo the panda's only food, cannot be made available outside the panda's native habitat