Why are wilderness areas needed? 

A)  to preserve biological diversity 
B)  for the high number of recreational users 
C)  to improve sustainable timber production 
D)  to improve sustainable organic agriculture

Wilderness areas are important for the preservation of biological diversity, as they offer undisturbed habitats for a variety of plant and animal species. They often serve as critical refuges for endangered or threatened species and provide opportunities for scientific research and education. While recreational use and sustainable resource extraction can be compatible with wilderness protection, the primary aim of preserving wilderness areas is to protect their natural ecosystems from human interference.