Question 3 (1 point) () Listen Individual cost cures are represented in Graph A, while market supply and demand are represented in Graph B. If the market demand curve is D3, then in the long run, MC P ATC P2 Pz (Per Unit) (Per Unit) Price Price P3 Dz 91 92 93 94 Quantity Quantity (Units per week) (Units per week) (a) ( b ) there are 0 economic profits, so there will be no entry nor exit. there are 0 economic profits, so firms will exit. O economic profit is greater than 0, and firms will enter. O economic profit is less than 0, and firms will exit