Why Is It That Osteoarthritis Would Be Considered an Example

Why is it that osteoarthritis would be considered an example of a wear-and-tear disease?

A) Because it is caused by a tear of the connective tissue that fuses the sternum to the floating ribs.
B) Because it is a degenerative disease that can be caused by injury or overuse.
C) Because it is an illness that can be easily treated by "wearing" compression-type clothing, such as calf-length socks or constricting undergarments.
D) Because one needs to "tear" the built up plaques that lead to this illness in order to reduce the symptoms. An example of such tearing would be a deep stretch or cracking one's knuckles.