Assertion: Melting point of Mn is more than that of Fe.
Reason: Mn has higher number of unpaired e− than Fe in atomic state.
a. If both assertion and reason are true and the reason is a correct explanation of assertion
b. If both assertion and reason are true but reason is not a correct explanation of assertion
c. If assertion is true but the reason is false
d. If assertion is false but the reason is true