form of locomotion method and frequency of reproduction environment in which they are found genetic and structural characteristics
I gave my students this multiple choice question: Persians are one of several breeds of domestic cat, Felis catus. Which attribute can be used to classify organisms as Felis catus?

Only one answer is correct among these 4 choices:
- form of locomotion
- method and frequency of reproduction
- environment in which they are found
- genetic and structural characteristics

Could you tell me which one is correct?

genetic and structural characteristics