An L-Shaped Beam Is Loaded as Shown in the Figure $6.8 \mathrm{kN} \cdot \mathrm{m}$

An L-shaped beam is loaded as shown in the figure. The bending moment at the midpoint of span AB is approximately: (A) $6.8 \mathrm{kN} \cdot \mathrm{m}$
(B) $10.1 \mathrm{kN} \cdot \mathrm{m}$
(C) $12.3 \mathrm{kN} \cdot \mathrm{m}$
(D) $15.5 \mathrm{kN} \cdot \mathrm{m}$