As shown in the figure, the simply supported beam is subjected to various external loads. When the distributed external force acts on section AB, and its concentration is w = 1 kn / m, the maximum shear force and bending moment on the beam are A、3.2kN, 6.01kNm B、3.2kN, 5.67kNm C、1.83kN, 6.01kNm D、1.83kN, 5.67kNm