Consider the frame shown below. C is a hinge connection and B is a rigid connection. A is a fixed support and $D$ is a roller support.

Note: reactions are pre$-$calculated and underlined as shown below; zero moment reaction at A$.$

a$)$ Draw axial force diagram. All peaks' values should be shown clearly.

b$)$ Draw shear force diagram. All peaks' values should be shown clearly.

c$)$ Draw moment diagram. All peaks' values should be shown clearly. Where is the location of maximum moment?