A joint's range of motion will be lost if the joint is not used regularly and will ultimately reduce flexibility. The correct option is b.
Flexibility is the ability of a joint or series of joints to move through an unrestricted, pain free range of motion.
Although flexibility varies widely from person to person, minimum ranges are necessary for maintaining joint and total body health.
A joint's range of motion will be lost if the joint is not used regularly and will ultimately reduce flexibility.
Thus, the correct option is b.
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