the same kingdom and the same species the same kingdom, but different species different kingdoms, but the same species different kingdoms and different species
I gave my students this multiple choice question: Dogs and cats are animals that have many similar body structures but they do not mate with each other. These two animals are classified in

Only one answer is correct among these 4 choices:
- the same kingdom and the same species
- the same kingdom, but different species
- different kingdoms, but the same species
- different kingdoms and different species

Could you tell me which one is correct?

the same kingdom, but different species