Answer:
B: He has pain when his shoulder bones rub together.
Explanation: Osteoarthritis is a type of arthritis caused by the wearing down over time of cartilage that surrounds the bones. (The cartilage that surrounds the bones in Dante’s shoulder has as worn down over the years in this case). Dante has Osteoarthritis . This means that he would have pain when his shoulder bones rub together.
Osteoporosis is a disease in which bone tissue begins to wear and thin, making bones weaker and more prone to breaks. Even though it sounds like Dante has Osteoporosis, his bones are not thinning, they are only wearing down. Osteoporosis does damage cartilage. However, it does not wear down cartilage, it wears down bone tissue. And since his bones are not thinning and Osteoporosis does not wear down cartilage, he does not have Osteoporosis. Therefore, the definition does not match his symptoms, and A is not the correct answer.
