Fact 1: Most mollusks have shells.

Fact 2: Instead, the body is covered with a protective shell of bony armor.

Given the two facts above, answer the question "Most mollusks have what?" with the following options: 
- aerobic capacity
 - scarce resources
 - layers of fat
 - an organism's body
 - protective parents
 - angry neighbors
 - extra arms
 - protective bony armor


 

        protective bony armor 