## **Core Concept**
The question tests knowledge of chemotherapy agents and their side effects, specifically nephrotoxicity. Nephrotoxicity refers to the potential of certain substances to cause damage to the kidneys. Various chemotherapeutic agents can cause nephrotoxicity through different mechanisms.

## **Why the Correct Answer is Right**
Cisplatin is a platinum-based chemotherapy drug used to treat various types of cancers, including testicular, ovarian, lung, bladder, and stomach cancers. It works by forming platinum-DNA adducts in cancer cells, which interfere with DNA repair, leading to cell death. However, one of its major side effects is nephrotoxicity. Cisplatin causes renal damage by inducing apoptosis in renal tubular cells, inflammation, and oxidative stress. This nephrotoxicity can lead to acute kidney injury (AKI) and chronic kidney disease (CKD) in some patients.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Although certain antibiotics and antiviral drugs can cause nephrotoxicity, without the specific name, it's hard to assess its relevance directly. However, the context of the question focuses on anticancer drugs.
- **Option B:** Similarly, without specifics, it's challenging to evaluate. Some drugs can cause nephrotoxicity, but they are not primarily known as anticancer agents.
- **Option D:** This option is also unspecified, making it difficult to directly refute. However, given the context, the focus is on identifying a well-known anticancer drug causing nephrotoxicity.

## **Clinical Pearl / High-Yield Fact**
A crucial point to remember is that **Cisplatin-induced nephrotoxicity** can be managed with strategies like aggressive hydration, monitoring of renal function, and the use of nephroprotective agents. The risk of nephrotoxicity often limits the dose of Cisplatin that can be administered.

## **Correct Answer:** C. Cisplatin