Please give me a clear steps on this problem.

Thank you.

Suppose that ABC Industries, a perfectly competitive rm, currently produces 500 units of imitation ham spread for a total cost of $1,500. The marginal cost of the 500th unit is $20, and the marginal revenue ofthe 500m unit is $15. To maximize prots, Cheapo Industries should: 0 continue to produce 500 units. 0 produce more than 500 units but less than 1500 units. produce less than 50"} units. 0 produce more than 1500 units. 0 stop producing at 500 units