Biodiversity Hot Spots Are Not Necessarily the Best Choice for Nature

Biodiversity hot spots are not necessarily the best choice for nature preserves because

A) hot spots need to be situated in remote areas not accessible to wildlife viewers.
B) their ecological importance makes land purchase very expensive in those areas.
C) a hot spot for one group of organisms may not be a hot spot for another group.
D) hot spots are designated by the abiotic factors present,not the biotic factors.