reflecting light rays away from the eyes refracting more light rays into the eyes reflecting more light rays into the eyes refracting light rays away from the eyes
I gave my students this multiple choice question: Which of these is a way that sunglasses help protect the eyes?

Only one answer is correct among these 4 choices:
- reflecting light rays away from the eyes
- refracting more light rays into the eyes
- reflecting more light rays into the eyes
- refracting light rays away from the eyes

Could you tell me which one is correct?

reflecting light rays away from the eyes