practical english

Question

The following is what type of sentence ? Dogs and cats sometimes fight in a veterinarian's waiting room a) simple b) compound c) complex d) compound-complex

Answer 1

I believe the answer is "a) simple" since even though the sentence contains one coordinate structure, namely Dogs and cats, this is merely the subject noun phrase of the single verb fight, i.e., there are no other verbs with separate subjects which would thus render the sentence as compound or complex.