Fact 1: Ultraviolet light causes sunburn.

Fact 2: Ultraviolet light is emitted by the sun.

Given the two facts above, answer the question "What causes sunburns?" with the following options: 
- hot temperature
 - storms
 - sweating
 - the sun
 - photons
 - heat
 - sunlight
 - magnets


 

    the sun     