Question

kellie is a large dog who is usually gentle but at the veterinary clinic tries to bite the staff. this is probably because;
a away from home, he doesnt behave
b he cant understand what they are saying
c he associates the clinic with pain
d he is not very intelligent

Explanation:

Dogs often show defensive or aggressive behavior in places where they have experienced negative stimuli like pain. Associating the clinic (a new environment for medical procedures) with pain (from previous visits) can lead to such reactions. Option A is too general as just being away from home doesn't fully explain the aggression. Option B is not a strong reason as dogs don't need to understand human speech in that context to be calm. Option D has no basis as there's no indication of the dog's intelligence level affecting this specific behavior.

Answer:

C. He associates the clinic with pain