In this case your answer would be
A - <span>Osteoporosis</span>
Answer:
Why are muscle and fat levels the only factors influencing flexibility impacted by personal decisions? Age, gender, and joint structure cannot be changed. ... Muscle stiffness that reduces flexibility often results from the overuse of muscle, but inactivity also weakens muscles and can make them more susceptible to injury.
Prefixes and at the beginning of the root of the word, where suffixes are placed after the root of the word (the ending)
Random. Hope this helps:)