Consider the beam shown in the figure (not to scale), on a hinge support at end $\mathrm{A}$ and a roller support at end $\mathrm{B}$. The beam has a constant flexural rigidity, and is subjected to the external moments of magnitude $\text{M}$ at one-third spans, as shown in the figure. Which of the following statements is/are TRUE?
- Support reactions are zero
- Shear force is zero everywhere
- Bending moment is zero everywhere
- Deflection is zero everywhere