Fact 1: If an object is black then that object absorbs all visible light.

Fact 2: Light grains are quartz, Black grains are coal.

Given the two facts above, answer the question "What absorbs all visible light?" with the following options: 
- apples
 - coal
 - Green
 - coral
 - skin
 - bamboo
 - glass
 - eyes


 

  coal       