## **Core Concept**
The question tests knowledge of the administration routes for various Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). Most NSAIDs are administered orally, but some are available for parenteral use, which is beneficial in certain clinical scenarios where oral administration is not feasible.

## **Why the Correct Answer is Right**
Diclofenac and ketorolac are examples of NSAIDs that can be administered parenterally. Among the given options, **Diclofenac** is indeed available in injectable form, which allows for its use in a parenteral route. This can be particularly useful in the perioperative setting or when patients are unable to take medications orally.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Typically, this option does not represent a commonly known NSAID for parenteral use. Without a specific name, it's hard to assess, but generally, many NSAIDs lack parenteral formulations.
- **Option B:** Similarly, without a specific name, it's challenging to evaluate. However, most NSAIDs are not administered parenterally, making this option likely incorrect if it represents a commonly used oral NSAID.
- **Option D:** This option is incorrect because, like options A and B, if it represents a standard oral NSAID (e.g., ibuprofen, naproxen), it would not be the correct choice for parenteral administration.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **Ketorolac** is another NSAID well-known for its parenteral formulation and is often used in clinical practice for short-term pain management. This makes it a high-yield fact for exams.

## **Correct Answer:** .