Fact 1: Bone provides protection for soft tissues and internal organs.

Fact 2: Antlers are true bones and are composed of calcium and phosphorous.

Given the two facts above, answer the question "What provides protection for soft tissues and internal organs?" with the following options: 
- bacteria
 - Veins and arteries.
 - Fully cooking the oysters
 - layers of fat
 - calcium and phosphorous
 - water
 - peachleaf willow
 - the trachea


 

     calcium and phosphorous    