Assertion (A): Excess defects are created byhammering the crystalline materials.Reason (R) : The…

Assertion (A): Excess defects are created byhammering the crystalline materials.Reason (R) : The thermal fluctuations createthe point defects in crystallinematerials.(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 NOTthe correct explanation of A(c) A is true but R is false(d) A is false but R is true