The average values of modulus of rigidity for Aluminium. Brass Copper, Nickel and Steel in desceading order are given by
A.Aluminium, Brass, Copper, Nickel, Steel
B.Aluminium, Copper, Nickel, Brass, Steel
C.Aluminium, Nickle, Steel, Brass, Copper
D.Brass, Copper, Aluminium, Nickel, Steel
E.Steel, Nickle, Copper, Brass, Aluminium