Q. Assertion (A): Carbon monoxide when inhaled causes death. Reason (R): Carbon monoxide combines hemoglobin.

• A. If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'
• B. If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'
• C. If 'A' is true but 'R' is false
• D. If 'A' is false but 'R' is true

Correct Answer: A