A beam has two continuous spans with a factored combined load $=4$kip$\frac{s}{f}t$ on the left span only, the required flexural strength $($flexural demand$)$ is$\_$mostly near:

A$)100$kip$-ft$

B$)155$kip$-ft$

C$)200$kip$-ft$

D$)255$kip$-ft$