owls looking for food at night monarch butterflies migrating south cats pawing the area where they are going to sleep fish swimming to the top of an aquarium to get food
I gave my students this multiple choice question: Which of the following best describes a learned behavior?

Only one answer is correct among these 4 choices:
- owls looking for food at night
- monarch butterflies migrating south
- cats pawing the area where they are going to sleep
- fish swimming to the top of an aquarium to get food

Could you tell me which one is correct?

fish swimming to the top of an aquarium to get food