The object with an elliptical shape, illustrated below, are marked with $3$ points below. The positions of these points are given by relative distances among one another. If there are $2$ forces acting on this object, one is a $100-N$ horizontal rightward force acting at point B $.$ The other is a $200-$ N diagonal force acting to the right and downward with $75-$degree angle to the horizon.

a$)$ Draw the Free Body Diagram $($FBD$)$ of this original scenario.

b$)$ Calculate the resultant force and moment acting at point A $.$

c$)$ Draw the Free Body Diagram $($FBD$)$ in term of resultant force and moment.