Fact 1: If something is outside during the day then that something will receive sunlight.

Fact 2: Another source of vitamin D is sunlight.

Given the two facts above, answer the question "What is a health benefit you receive for being outside?" with the following options: 
- Relieve pain
 - staying warm
 - exercise
 - inactive
 - vitamin D
 - air cools
 - layers of fat
 - sweating


 

     vitamin D    