The mountain fox is moved into a desert setting. Why would panting be insufficient to maintain thermoregulation?

AThe temperatures in the desert are in insufficient to trigger panting.
BPanting involves the loss of water.
CThe humidity in the desert prevents efficient evaporation of moisture during panting.
DPanting does not evaporate sufficient salts.

Verified Answer :

The answer is B confidently

A mountain fox would be more accustomed to a setting where water is more in abundance, so since there is less water available, and panting involves the loss of water, then any panting would not be good.
The answer is B.