Given the following linear program, the constraints have been drawn below, and the feasible region has been colored in. Also, an iso-profit line for Z = $8,400 has been drawn. Which point is optimal? You should be able to do this without having to do any math. Max 40 x + 140 y subject to 0.2 x + 1 y s 56 Constraint 1 0.17x + 1.2 y s 60 Constraint 2 1.8 x + 2.4 y s 400 Constraint 3 1 y s 45 Constraint 4 1 x S 150 Constraint 5 2 0 0 Y 2 120 100 80 60 40 A B R 20 0 50 350 400 E 100 150 200 250 300 Constr 1 -Constr 2_Constr 3 Constr 4 Constr 5 -- isoprofit OA OB OC o D