This question has options. Select from options: Read this fact: "as distance to an object increases , that object will appear smaller"

Now answer this question: "a man drives away from his dog, and the dog progressively got smaller in the rear view mirror. what was happening?"

pick from the following. -- the dog was evaporating; -- the distance between them remained same; -- the distance between them was going down; -- the distance between them was going up;
the distance between them was going up