Pseudostratified epithelium is found in

Options

A. rectum
B. urinary bladder
C. wall of oesophagus
D. inner lining of bronchiole

Explanation

### Step-by-Step Solution:

1. **Understanding Pseudostratified Epithelium**:
- Pseudostratified epithelium is a type of epithelial tissue that appears to be stratified (layered) but is actually a single layer of cells. The nuclei of these cells are located at different heights, giving the illusion of multiple layers.

2. **Meaning of the Term**:
- The term "pseudostratified" comes from "pseudo," meaning false, and "stratified," referring to layers. Thus, it is called pseudostratified because it looks like there are multiple layers of cells when there is actually only one.

3. **Location of Pseudostratified Epithelium**:
- This type of epithelium is typically found in areas where mucus secretion is important. It is commonly located in the respiratory tract, particularly in the lining of the bronchi and bronchioles.

4. **Analyzing the Options**:
- Given options are:
- Rectum
- Urinary bladder
- Wall of esophagus
- Inner lining of bronchiole
- We need to identify which of these locations contains pseudostratified epithelium.

5. **Identifying the Correct Answer**:
- The inner lining of the bronchiole is part of the respiratory system where mucus is secreted. Therefore, it is the only option that contains pseudostratified epithelium.
- The rectum, urinary bladder, and wall of the esophagus do not primarily secrete mucus in the same way.

6. **Conclusion**:
- The correct answer is the **inner lining of bronchiole**.