The graph shows the cost curves of an individual rm in a perfectly compeuuve 1nuusrry. use me pOIIlIS A, B, C, and D to trace out the rm's prot-maximizing output decisions, according to the instructions. Place point A at the shutdown point. Place point B at the point where the rm is making a loss but will continue to operate in the short run. Place point C at the breakeven point. Place point D at the point where the rm is making an economic prot. Marginal cost Average total cost Average variable cost Price _. c: onmmbmmwm O 3 6 91215182124273033563942 Quantity Which point or points are on the rm's short-run supply curve