Assertion (A): Carbon forms interstitial solidsolution when added to iron.Reason (R): The atomic..

Assertion (A): Carbon forms interstitial solidsolution when added to iron.Reason (R): The atomic radius of carbon atom ismuch smaller than that of iron.(a) Both A and R are individually true and R is thecorrect explanation of A(b) Both A and R are individually true but R is not thecorrect explanation of A(c) A is true but R is false(d) A is false but R is true