Answer:
C.
Explanation:
The sun is directly overhead at noon on the equator on the first day of spring, and on the first day of fall. You would have to be less than 23.5 degrees above or below the equator to have the Sun pass directly overhead. Therefore, it never occurs in the continental US.
Visible and infrared light do not cause sunburn and they are not known to directly be a skin cancer risk.
Answer:
give us something else to work with or this is just the best guess
