The bending moment diagram of the beam shown in figure is (a) (c) A ' 2 mm 5.4 kN-m 10.4 kN-m 5.4 kN-m B 5, kN ari A102030 C BAGIN Are (b) 3 m BA B 10 kN-m (d) 5 kN-m 15 kN-m C B B