For a reinforced concrete section, the shape of shear stress diagram is
(A) Wholly parabolic
(B) Wholly rectangular
(C) Parabolic above neutral axis and rectangular below neutral axis
(D) Rectangular above neutral axis and parabolic below neutral axis
(A) Wholly parabolic
(B) Wholly rectangular
(C) Parabolic above neutral axis and rectangular below neutral axis
(D) Rectangular above neutral axis and parabolic below neutral axis