**Core Concept**
Idiopathic hypercalcemia refers to an elevated calcium level in the blood without a known cause. Treatment aims to reduce calcium levels, prevent complications, and identify the underlying cause. Pharmacological management involves using medications that either reduce calcium absorption, increase calcium excretion, or inhibit the production of calcium.

**Why the Correct Answer is Right**
The primary goal of treatment is to decrease calcium levels and prevent complications. Medications like glucocorticoids (e.g., prednisone), bisphosphonates (e.g., pamidronate), and calcimimetics (e.g., cinacalcet) are used to manage idiopathic hypercalcemia. Glucocorticoids reduce calcium absorption in the gut and increase urinary excretion. Bisphosphonates inhibit osteoclast-mediated bone resorption, reducing calcium release into the bloodstream. Calcimimetics activate calcium-sensing receptors, reducing parathyroid hormone (PTH) secretion and subsequent calcium release.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not mention a specific treatment for idiopathic hypercalcemia.

**Option B:** This option is incorrect because it does not accurately represent a treatment for idiopathic hypercalcemia.

**Option C:** This option is incorrect because it does not provide a valid treatment for idiopathic hypercalcemia.

**Clinical Pearl / High-Yield Fact**
Glucocorticoids are often the first-line treatment for idiopathic hypercalcemia due to their ability to reduce calcium absorption and increase urinary excretion.

**Correct Answer:** A.