$($a$)$ Find critical points

$($b$)$ Calculate moment at these critical points

$($e$)$ Draw a final moment diagram including dashed line

$($c$)$ How many superposition sections $($dashed line area$)?$ Where is$($are$)$ superposition area$($s$)?($e$.$g$.,$ A$-$B or A$-$C$,$ etc.$)$

$($d$)$ Calculate moment value at $B$ using supkrposition and show procedure including an equation in order to superimpose from the basic structures

$($f$)$ Draw a shear diagram