ASSERTION (A): Carbon monoxide when inhaled causes death.
REASON (R): Carbon monoxide combines with hemoglobin.
Which is correct about the given parts of an argument in the box above?
A. A is true but R is false.
B. A is false but R is true.
C. Both A and R are true and R is the correct explanation of A.
D. Both A and R are true and R is NOT the correct explanation of A.