Which of the following statements is TRUE?

a. There is at least one wildlife refuge is each of the 50 states.
b. Hunting is not allowed in wildlife refuges.
c. The National Wildlife Refuge system has made it a priority to expand the limited ecosystems currently represented
d. Wildlife refuges are managed by the Bureau of Land Management (BLM)
e. The primary mission of the National Wildlife Refuge system is to provide public recreation areas for wildlife observation, photography and environmental education.