Question

Why is cartilage important?

A. It contains a fluid that enables the surfaces of bones to slide over each other smoothly at the joints.
B. It causes bones to fuse together as they grow.
C. It acts as a cushion between bones and protects them as they move against each other.
D. It holds bones together at the joints.

Answer 1

The answer is C. It acts as a cushion between bones and protects them as they move against each other. 

Answer 2

The cartilage is the rubber like ears.
In short here is the answer:
C. It acts as a cushion between bones and protects them as they move against each other.