The moment of resistance of an under- reinforced section is computer on the basis of
(a) Compressive force developed in concrete
(b) Tensile force developed in steel
(c) Both (a) & (b)
(d) All the above
(a) Compressive force developed in concrete
(b) Tensile force developed in steel
(c) Both (a) & (b)
(d) All the above