Assertion: A simple tissue is made of only one type of cells.
Reason: Various simple tissues in plants areparenchyma, collenchyma and sclerenchyma.

Options

A. If both assertion and reason are true and reason is the correct explanantion of assertion
B. if both assertion and reason are true but reason is not the correct explanation of assertion.
C. if assertion is true but reason is false.
D. if both assertion and reason are false.

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that a simple tissue is made of only one type of cell. This is a fundamental definition of simple tissues in plants.

2. **Understanding the Reason**:
- The reason provided lists parenchyma, collenchyma, and sclerenchyma as examples of simple tissues. This is accurate since these are indeed the main types of simple tissues found in plants.

3. **Analyzing the Relationship**:
- While both the assertion and the reason are true, the reason does not explain the assertion. The assertion defines what a simple tissue is, while the reason merely provides examples of simple tissues without explaining why they are classified as such.

4. **Conclusion**:
- Since both statements are true but the reason does not correctly explain the assertion, the correct answer is: "If both assertion and reason are true, the reason is not the correct explanation of the assertion."

### Final Answer:
The correct option is: **If both assertion and reason are true, the reason is not the correct explanation of the assertion.**

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