using a fork to eat jumping at a loud noise squinting in a bright light sneezing when smelling a flower
I gave my students this multiple choice question: Which of the following is most likely a learned behavior?

Only one answer is correct among these 4 choices:
- using a fork to eat
- jumping at a loud noise
- squinting in a bright light
- sneezing when smelling a flower

Could you tell me which one is correct?

using a fork to eat