Assertion : Chicken pox is a mild disease however it leaves scars and marks.
Reason : Chicken pox results in rashes which appear first on face and spread on stomach and chest later.

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 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 chicken pox is a mild disease but it leaves scars and marks. We need to evaluate if this statement is true or false.

2. **Evaluating the Assertion**: Chicken pox is indeed considered a mild disease; however, it typically does not leave scars. The rashes that occur during chicken pox usually heal without leaving permanent marks, unlike smallpox which can leave scars. Therefore, the assertion is **false**.

3. **Understanding the Reason**: The reason given states that chicken pox results in rashes that first appear on the face and later spread to the stomach and chest.

4. **Evaluating the Reason**: In reality, chicken pox rashes start on the stomach and chest before spreading to the face and the rest of the body. This is the opposite of what is stated in the reason. 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 the reason are incorrect.

### Final Answer:
Both the assertion and the reason are incorrect.

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