Characterstic of simple epithelium is:

Options

A. They are arranged indiscriminately
B. The make a definite layer
C. Continue to divide and help in organ fundtion
D. none

Answer

### Step-by-Step Solution:

1. **Understanding Simple Epithelium**:
- Simple epithelium is a type of epithelial tissue that consists of a single layer of cells. This characteristic distinguishes it from stratified epithelium, which has multiple layers.

2. **Analyzing the Options**:
- **Option A**: "They are arranged indiscriminately" - This statement is incorrect. Simple epithelial cells are arranged in a specific manner to form a single layer.
- **Option B**: "They make a definite layer" - This statement is correct. Simple epithelium is characterized by its formation of a definite single layer of cells.
- **Option C**: "Continue to divide and help in organ function" - This statement is misleading. While epithelial cells can regenerate, simple epithelium does not primarily function in organ division; its main roles are protection, absorption, and secretion.
- **Option D**: "None all right" - This option is incorrect since Option B is a true statement.

3. **Conclusion**:
- Based on the analysis, the correct characteristic of simple epithelium is that they make a definite layer. Therefore, the answer is **Option B**.