## Core Concept
The decision to remove a drug by dialysis depends on its pharmacokinetic properties, particularly its molecular size, charge, and protein binding characteristics. Dialysis is most effective for removing drugs that are not highly protein-bound, have a low molecular weight, and are water-soluble.

## Why the Correct Answer is Right
The correct answer, , is likely a drug with properties that make it removable by dialysis, such as low molecular weight, minimal protein binding, and high water solubility. Drugs like lithium, aspirin (salicylates), and certain alcohols are examples that can be effectively removed by dialysis due to their pharmacokinetic profiles.

## Why Each Wrong Option is Incorrect
* **Option A:** is incorrect because if it represents a drug with high protein binding, large molecular size, or low water solubility, dialysis would not be an effective removal method.
* **Option B:** is incorrect if it is a drug that is extensively tissue-bound or has pharmacokinetic properties that limit its removal via dialysis.
* **Option C:** is incorrect presumably because it does not fit the profile of a drug that would be effectively removed by dialysis, similar to the reasons for A and B.

## Clinical Pearl / High-Yield Fact
A key point to remember is that for a drug to be effectively removed by dialysis, it should have a low volume of distribution (Vd) and low protein binding. This is crucial in managing overdose cases where dialysis might be considered as a treatment option.

## Correct Answer Line
**Correct Answer: D.**