Answer
$$
\left.\left(M_R\right)_C=435 \mathrm{lb} \cdot \mathrm{ft}\right)
$$
Work Step by Step
$$
\begin{aligned}
\mathrm{↺}+\left(M_R\right)_{\mathrm{C}} & =200(1.5)+125 \cos 30^{\circ}(1.25) \\
& =435.32 \mathrm{lb} \cdot \mathrm{ft}=435 \mathrm{lb} \cdot \mathrm{ft}↺
\end{aligned}
$$
