A continuous beam is designed to support a triangular load with a maximum magnitude of $Wk\frac{N}{m}(W$ and $P$ same values as per Force method question$)$ and $PkN$ acting on the middle span as shown in the figure below. This beam is fully fixed at A and is supported by a pin at $C,B$ is continuous. The length of member $ABisL=3\mathrm{.}4.$ El is constant for all spans.

Please use slope and deflection method to calculate the moment at the support and then develop the free body diagram and equations to draw the SFD$,$BMD$.$

Please show the value of MBC as a separate answer.