A dog or cat that appears puffed up (hair standing on end) is most likely:

Question

Quizplus · Accepted Answer

When a dog or cat appears puffed up (hair standing on end), it can be a sign of both being cold or frightened. When an animal is cold, they will puff up to capture more heat, and when they are frightened, the puffing up can make them appear bigger and more intimidating to their perceived threat. Therefore, the best choice is D, as both factors may be contributing to the behavior.

A Dog or Cat That Appears Puffed Up (Hair Standing