**Core Concept**
The nephrotic syndrome is characterized by heavy proteinuria, leading to hypoalbuminemia. This condition affects the protein binding of various drugs, as albumin is a major carrier protein in the blood.

**Why the Correct Answer is Right**
Since the correct answer choice is missing, let's consider a common drug that is not significantly bound to albumin. For instance, **amoxicillin** is a drug with low protein binding. In patients with nephrotic syndrome and hypoalbuminemia, the protein binding of drugs like **amoxicillin** will not be significantly affected, as its binding is not primarily dependent on albumin levels.

**Why Each Wrong Option is Incorrect**
**Option A:** If this option were a drug highly bound to albumin, its protein binding would be affected in nephrotic syndrome.
**Option B:** Similarly, if this were a highly albumin-bound drug, its binding would be impacted.
**Option D:** Any drug with significant albumin binding would have altered protein binding in hypoalbuminemia.

**Clinical Pearl / High-Yield Fact**
It's crucial to remember that in conditions affecting albumin levels, such as nephrotic syndrome, the pharmacokinetics of albumin-bound drugs can be significantly altered, potentially necessitating dose adjustments.

**Correct Answer:** D. Amoxicillin.