Hi, in my economics class, we are looking at Monopolistic Competitive firm. We were given some practice questions to answer before our test, but I am having trouble with this one. Could someone explain this to me? All information is provided in pictures.

Q: Answer the following regarding Monopolistic Competition in the long run. P, Costs $2.500 ($/unit) $2.000 MC $1.500 ATC $1,000 D (=P) $500 Dz (=Pz) MR S- 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Quantity (Q) (1,000 of units) profit maximizing price in the long run Choose... + average total cost per unit in the long run Choose... # CheckIC Choose. $800 $600 $900 $500 $1,000 $1,200