**Core Concept**
The gastric glands, located in the stomach lining, contain various cell types that play crucial roles in digestion. These cells include **chief cells**, **parietal cells**, and **mucous cells**. Each cell type has a distinct function in the digestive process.

**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss the typical cell types found in gastric glands. **Chief cells** produce pepsinogen, **parietal cells** produce hydrochloric acid and intrinsic factor, and **mucous cells** produce mucus to protect the stomach lining. Without the options, we can't determine the correct answer directly, but we can infer that the correct answer would be a cell type not typically found in gastric glands.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option, we can't provide a detailed explanation.
**Option B:** Similarly, without the specific option, we can't provide a detailed explanation.
**Option C:** This option would be incorrect if it were a cell type typically found in gastric glands.
**Option D:** This option would be incorrect if it were a cell type typically found in gastric glands.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that gastric glands contain **chief cells**, **parietal cells**, and **mucous cells**, each with unique functions.

**Correct Answer:** D. Pancreatic cells