The Different Chipmunk Species Correspond to the Different Tree Species

The different chipmunk species correspond to the different tree species along an elevational gradient.This is likely because

A) each chipmunk species depends on the specific tree species for habitat.
B) lodgepole trees and lodgepole chipmunks prefer warmer temperatures.
C) the fundamental niche of yellow-pine chipmunks is limited to middle elevation.
D) several resource factors for both groups change with elevation.