d$)100\mathrm{.}55$kips

Q$3-9(4$ Marks$)$ The beam shown in the Figure below has continuous lateral support of both flanges. The uniform load is a service load consisting $50\%$ dead load and $50\%$ live load. The dead load includes the weight of the beam. Use the AISCRRFD method.

If A$992$ steel is used, the moment capacity $(M_n)$ of W$16$ X $31$ is:

a$)170\mathrm{.}2k-ft$

b$)202\mathrm{.}5k-ft$

c$)305\mathrm{.}1k-ft$

d$)225\mathrm{.}4k-fi$