Why Is a Rocky Seashore Inhabited by More Types of Organisms

Why is a rocky seashore inhabited by more types of organisms than a sandy seashore?

A) The rocks trap and hold more nutrients.
B) The sand drains water more quickly at low tide.
C) The sand does not hold nutrients.
D) Predators are more likely to hunt along sandy shores.
E) It is easier for organisms to attach to the rocks.