The dog avoids a pet cat. The dog jumps on a sofa. The dog rolls over on command. The dog drools when it smells food.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which trait of a pet dog is inherited?
Possibilities:
- The dog avoids a pet cat.
- The dog jumps on a sofa.
- The dog rolls over on command.
- The dog drools when it smells food.

The dog drools when it smells food.