Which is the best statement about joint flexibility? . a.. it is constant for any joint type.. b.. it is constant within a family.. c.. it is consistent between an individual's joints.. d.. it varies from joint to joint..

The answer is D. It varies from joint to joint. Each one of the joints in a human body is unique in its flexibility depending on how much it is used. Joints in some parts of the body and used more than other, while others are used less often, meaning overall, each joint in an individuals body has its own unique flexibility.

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