**Core Concept**
Bisphosphonates are a class of medications that inhibit bone resorption by binding to hydroxyapatite in the bone matrix, thereby reducing the activity of osteoclasts and promoting bone mineralization.

**Why the Correct Answer is Right**
Bisphosphonates are used to treat conditions characterized by excessive bone resorption, such as osteoporosis, Paget's disease, and bone metastases from malignancies. They are also used to prevent skeletal complications in patients with multiple myeloma and to treat osteogenesis imperfecta. The mechanism of action of bisphosphonates involves the inhibition of farnesyl pyrophosphate synthase, an enzyme essential for the mevalonate pathway, which is necessary for the synthesis of isoprenoids that are involved in the activation of osteoclasts.

**Why Each Wrong Option is Incorrect**
* **Option A:** This is incorrect because bisphosphonates are used to treat osteogenesis imperfecta, a condition characterized by brittle bones and increased bone fragility.
* **Option B:** This is incorrect because bisphosphonates are used to prevent skeletal complications in patients with multiple myeloma, not to treat the disease itself.
* **Option C:** This is incorrect because bisphosphonates are used to treat conditions characterized by excessive bone resorption, not to promote bone resorption.

**Clinical Pearl / High-Yield Fact**
Bisphosphonates are a crucial part of the management of osteoporosis, and their use should be tailored to the individual patient's needs, taking into account factors such as the severity of the disease, the presence of comorbidities, and the patient's risk of fractures.

**Correct Answer:** D.