You are presented with the quiz "From which part of a dog can bodily water escape?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if an animal sweats then that animal 's bodily water decreases" and "dogs only sweat from the bottoms of their feet, the only way they can discharge heat is by panting". 

So, what's the best answer to the question?


 

        bottom of feet   