Refer to the Figure Shown

Refer to the figure shown.
If animals in both groups of animals were exposed to progressively higher air temperatures than shown, and data collection from the experiment continued, what results would you expect to see?

A) Both metabolic rates would remain flat.
B) Both metabolic rates would decrease, however, the summer-acclimatized reindeer would decrease first.
C) Both metabolic rates would increase, however, the winter-acclimatized reindeer would increase first.
D) Only the summer-acclimatized metabolic rates would decrease.