Assertion : Living organisms show internal as well as external growth.
Reason : Living organism undergo the process known as accretion.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not 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 "Living organisms show internal as well as external growth."
- To evaluate this, we need to consider the types of growth in living organisms. Living organisms primarily exhibit internal growth through cell division and the formation of new cells.

2. **Evaluating the Assertion:**
- Internal growth occurs as organisms grow and develop, creating new cells within their bodies.
- External growth, which implies an increase in size from the outside, is not a characteristic of living organisms in the same way it is for non-living entities. Thus, the assertion is **false**.

3. **Understanding the Reason:**
- The reason states that "Living organisms undergo the process known as accretion."
- Accretion refers to the process of growth by the accumulation of external materials, typically observed in non-living entities (like rocks or crystals) rather than living organisms.

4. **Evaluating the Reason:**
- Living organisms do not undergo accretion; instead, they grow internally through processes such as cell division and differentiation. Therefore, the reason is also **false**.

5. **Conclusion:**
- Since both the assertion and the reason are false, the correct answer is that both the assertion and reason are false.

**Final Answer:**
Both assertion and reason are false.

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