**Core Concept**
Glucose-mediated insulin release involves the closure of **potassium channels**, leading to cell depolarization. This process is crucial for the regulation of **blood glucose levels**. The underlying mechanism is based on the **pancreatic beta-cell** physiology.

**Why the Correct Answer is Right**
The correct answer is related to the **sulfonylurea receptor**, which is involved in the regulation of **ATP-sensitive potassium channels**. When glucose enters the pancreatic beta-cell, it is metabolized, leading to an increase in **ATP/ADP ratio**, which closes the **ATP-sensitive potassium channels**. This closure leads to cell depolarization, opening of **voltage-dependent calcium channels**, and ultimately, **insulin secretion**.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it is not directly related to glucose-mediated insulin release.
**Option B:** Incorrect as it is involved in a different signaling pathway.
**Option C:** Incorrect because it is not the primary mechanism for glucose-mediated insulin release.
**Option D:** Incorrect as it is related to a different aspect of cellular physiology.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that **glucose-mediated insulin release** is a critical mechanism for maintaining **normoglycemia**. Understanding this process is essential for managing **diabetes mellitus**.

**Correct Answer:** D. ATP-sensitive potassium channels.