Although Allen's and Bergmann's Rules Often Explain Body Shape and Morphology

Although Allen's and Bergmann's rules often explain body shape and morphology, we occasionally see variations from the expected patterns.This sometimes indicates that

A) the long-term association between body shape and climate is an example of acclimatization.
B) body shape and morphology do not reflect both evolutionary and developmental processes.
C) the association between body shape and morphology does respond to environmental stressors.
D) the association between body shape, morphology, and the environment is not a result of natural selection.