What is the name of the vast 19-million-acre preserve in northeastern Alaska, the largest national wildlife refuge in the system?
AKenai National Wildlife Refuge
BYukon Delta Refuge
CKodiak Refuge
DArctic National Wildlife Refuge✓
The Arctic Refuge, established in 1960, is home to polar bears, caribou, and the Porcupine caribou herd's calving grounds, and has been at the centre of energy development debates.