The dog decided to (lay, lie) on the cold tile floor. *

Lie

Explanation:

The dog decided to lay on the cold tile floor

The dog decided to lie on the cold tile floor

Lay is past tense if you use the word lay it means that you are telling someone to lay the dog down on the cold tile floor.

Hope this helps.

the author motivation is to show the power of animal-human relationships.

i think the answer is c.