## Core Concept
Stavudine, also known as d4T, is a nucleoside reverse transcriptase inhibitor (NRTI) used in the treatment of HIV/AIDS. It works by inhibiting the activity of reverse transcriptase, an enzyme crucial for the replication of retroviruses, including HIV. This mechanism is key to understanding its role in antiretroviral therapy.

## Why the Correct Answer is Right
The correct answer highlights that stavudine is associated with **peripheral neuropathy** and **lactic acidosis**. These are well-documented side effects of stavudine. Peripheral neuropathy is a condition characterized by damage to the peripheral nerves, often causing pain, numbness, or weakness in the hands and feet. Lactic acidosis, a form of metabolic acidosis, occurs when lactate builds up in the bloodstream, which can be life-threatening. Stavudine's mechanism of action involves mitochondrial toxicity, which is believed to contribute to these side effects.

## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because while stavudine does have various side effects, the specifics mentioned here are not accurate or are incomplete regarding the notable side effects associated with stavudine.
- **Option B:** This option might mention a side effect not commonly associated with stavudine or inaccurately describe its pharmacological profile.
- **Option C:** Similar to Option A, this would be incorrect based on the inaccurate description of stavudine's effects or side effects.

## Clinical Pearl / High-Yield Fact
A key point to remember about stavudine is its association with **mitochondrial toxicity**, which leads to significant side effects like peripheral neuropathy and lactic acidosis. This is a critical consideration in the management of HIV/AIDS patients on antiretroviral therapy.

## Correct Answer Line
**Correct Answer: D.** Stavudine is associated with peripheral neuropathy and lactic acidosis.