**Core Concept**
A peptic ulcer-like hernia is a clinical condition where a hernia presents with symptoms similar to those of a peptic ulcer, such as abdominal pain and nausea. This is often due to the hernia's location and the involvement of nearby structures, such as the omentum, which can mimic the symptoms of a peptic ulcer.

**Why the Correct Answer is Right**
The hernia that often simulates a peptic ulcer is the **incisional hernia**. This type of hernia occurs through a previous surgical incision, and the omentum can become trapped, leading to inflammation and symptoms similar to those of a peptic ulcer. The omentum's involvement can cause abdominal pain, nausea, and vomiting, making the diagnosis challenging.

**Why Each Wrong Option is Incorrect**
**Option A:** A **hiatal hernia** can cause symptoms similar to those of a peptic ulcer, but it is not the most common type of hernia to simulate a peptic ulcer.

**Option B:** An **inguinal hernia** typically presents with a bulge in the groin area and may not always simulate a peptic ulcer.

**Option C:** A **lumbar hernia** can occur in the lumbar region and may not typically present with symptoms similar to those of a peptic ulcer.

**Clinical Pearl / High-Yield Fact**
When considering a peptic ulcer-like presentation, remember to also consider a hernia, especially an incisional hernia, as a potential cause. A thorough history and physical examination, including a review of previous surgeries, can help differentiate between these conditions.

**Correct Answer: C.**