Answer:
The corrects answer is D.
Explanation:
Osteoclasts are the cells that are responsible for the reabsorptions of the bone structure, this way they can add calcium and other important elements from the bone tissue into the bloodstream. They also take part in remodeling the bones in children and adults, resorption of aged bones etc. So in the case of a homeostatic imbalance that activates the osteoclast cells, it would lead to the loss of bone structure and density, which is the disease named "Osteoporosis". I hope this answer helps.
