Assertion : In servere cases of Pneumonia, the lips and finger nails may turn gray to bluish in colour.
Reason : In Pneumonia the alveoli get filled with fluid leading to serve problems in respiration.

Options

A. If both Assertion & Reason as true & the Reason is a correct explanation of the assertion.
B. If both Assertion & Reason are True but Reason is not 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 in severe cases of pneumonia, the lips and fingernails may turn gray to bluish in color. This phenomenon is known as cyanosis, which occurs when there is insufficient oxygen in the blood.

2. **Understanding the Reason**: The reason provided explains that in pneumonia, the alveoli (the tiny air sacs in the lungs) get filled with fluid, which leads to severe problems in respiration. This fluid accumulation prevents the lungs from filling adequately with air, thereby reducing the amount of oxygen that can be transferred to the bloodstream.

3. **Linking the Assertion and Reason**: The assertion is true because the lack of oxygen in the bloodstream due to pneumonia can cause the skin, lips, and nails to take on a bluish tint. The reason is also true as it accurately describes the physiological process occurring in pneumonia that leads to this condition.

4. **Conclusion**: Since both the assertion and the reason are true, and the reason correctly explains the assertion, we conclude that both statements are valid and related.

5. **Final Answer**: The correct answer is that both the assertion and the reason are true, and the reason is the correct explanation for the assertion.

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