Assertion (A): Potassium is a stronger reducing agent than sodium.
Reason (R ): IE of potassium is less than that of sodium.
A. If both (A) and (R ) are correct and (R ) is the correct explanation of (A).
B. If both (A) and (R ) are correct, but (R ) is not the correct explanation of (A).
C. If (A) is correct, but (R ) is incorrect.
D. If (A) is incorrect, but (R ) is correct.