**Core Concept**
The **small intestine** is affected in coeliac disease, an autoimmune disorder caused by a reaction to **gluten**. This leads to inflammation and damage in the **mucosa** and **villi** of the small intestine.

**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss general histological features of coeliac disease: **villous atrophy**, **crypt hyperplasia**, and **intraepithelial lymphocytosis** are characteristic. These changes are due to an immune response to **gluten**, leading to **inflammation** and **damage** to the **intestinal mucosa**.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option, we can't comment on its correctness, but typically, **villous atrophy** is a correct feature.
**Option B:** Similarly, **crypt hyperplasia** is a feature, not something that would be excluded.
**Option C:** And **intraepithelial lymphocytosis** is also a characteristic finding.
**Option D:** This option is missing, but if it mentioned something like **eosinophilic infiltration** as a primary feature, it might be less commonly associated directly with coeliac disease compared to the other options.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that coeliac disease can present with **non-gastrointestinal symptoms**, such as fatigue, and the diagnosis should be considered in patients with **unexplained iron-deficiency anemia**.

**Correct Answer:** Correct Answer: D.