Assertion :- Both vascular cambium and cork cambium are lateral meristem.
Reason :- Both are involved in secondary growth of plant by additon of cells in lateral direction of main axis.

Options

A. If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but the Reason is a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion:**
- The assertion states that both vascular cambium and cork cambium are lateral meristems.
- **Explanation:** Lateral meristems are responsible for secondary growth in plants, which increases the girth of stems and roots. Vascular cambium and cork cambium are indeed classified as lateral meristems.

2. **Understanding the Reason:**
- The reason provided states that both vascular cambium and cork cambium are involved in the secondary growth of plants by adding cells in the lateral direction of the main axis.
- **Explanation:** The vascular cambium produces secondary xylem (wood) and phloem, while the cork cambium produces cork (part of the bark). Both contribute to the thickening of the plant body, confirming that they are involved in secondary growth.

3. **Evaluating the Relationship:**
- Both the assertion and reason are true. Furthermore, the reason correctly explains the assertion since both types of cambium contribute to the secondary growth of the plant.

4. **Conclusion:**
- Since both the assertion and reason are true, and the reason is a correct explanation of the assertion, the answer is that both statements are true and the reason is a correct explanation of the assertion.

**Final Answer:**
- The correct option is: Both assertion and reason are true, and the reason is a correct explanation of the assertion.

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