**Core Concept**
The question is testing the student's knowledge of a drug that requires adequate hydration to prevent nephrotoxicity due to its low urinary solubility. This is a critical concept in pharmacology, as it highlights the importance of considering a drug's pharmacokinetics and potential side effects in clinical practice.

**Why the Correct Answer is Right**
The correct answer is a drug that is highly excreted in the urine in its intact form but has low urinary solubility. This means that the drug tends to precipitate out of solution in the urine, potentially causing nephrotoxicity. To prevent this, patients require adequate hydration to increase urine flow and prevent drug precipitation. The drug in question is likely an aminoglycoside antibiotic, which is known for its low urinary solubility and potential for nephrotoxicity.

**Why Each Wrong Option is Incorrect**
* **Option A:** This drug is not typically associated with low urinary solubility or nephrotoxicity. It is often used orally and does not require hydration to prevent side effects.
* **Option B:** This option is not relevant to the question, as it does not describe a drug that requires hydration to prevent nephrotoxicity.
* **Option C:** While this drug does have some potential for nephrotoxicity, it is not primarily excreted in the urine in its intact form. It is more likely to be metabolized before excretion.

**Clinical Pearl / High-Yield Fact**
Aminoglycoside antibiotics, such as gentamicin and tobramycin, require adequate hydration to prevent nephrotoxicity due to their low urinary solubility. This is a critical consideration in clinical practice, as it can help prevent serious side effects in patients receiving these medications.

**Correct Answer:** C.