$(5)$ Consider the simply supported I$-$shaped beam shown. Point B is a pin and roller at point D$.$

a$.[10$ pts$]$ Draw the shear and moment diagrams for the beam. Clearly label the magnitudes and position of all locations of interest including changes in shape and local maxima and minima.

b$.[8$ pts$]$ Determine the absolute maximum shear stress in the beam.

c$.8pts$ Determine the absolute maximum normal stress in the beam.