Which of the following is true?

The perfectly competitive firm produces at a quantity of 60 and a price of $40.

The perfectly competitive firm produces at a quantity of 40 and a price of $60.

The monopolist produces at a quantity of 40 and a price of $60.

The monopolist produces at a quantity of 60 and a price of $40.

100 90 MC 80 - 70- 60 - Price 50 40 -LOL 30- 20 - D 10 - MR 0 10 20 30 140 50 60 70 80 90 100 Quantity