Two horizontal $5-$kip forces are applied to pin B of the assembly shown. Knowing that a pin of $0\mathrm{.}8$ in$.$ diameter is used at each connection, determine the maximum value of the average normal stress $($a$)$ in link $AB,($b$)$ in link $BC.($c$)$ maximum average shear stress in pin $A,B,$ and $C.$ Please draw FBD for each cut