Which of the Following Would Be Research in Which a Conservation

Which of the following would be research in which a conservation biologist would be involved?

A) reestablishing whooping cranes in their former breeding grounds in North Dakota
B) studying species diversity and interaction in the Florida Everglades, past and present
C) population ecology of grizzly bears in Yellowstone National Park
D) the effects of hunting on white-tailed deer in Vermont
E) the effect of protection programs on the recovery of the North Atlantic cod fishery