Assertion (A): The concentration of oxygen in the inspired air is higher than in the expired air. Reason (R): Oxygen is continuously absorbed by the blood from the inhaled air in the lungs.
- ABoth A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is NOT the correct explanation of A
- CA is true but R is false
- DA is false but R is true
✓ Correct answer: A
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