65 . If a monopolist is regulated and required to set price equal to ATC . the monopolist will earn Accounting profit but no economic profit Economic profit but no accounting profit Neither accounting profit nor economic profit A profit equal to its total cost Consider the following information for a monopoly firm . Assume that @ equals the level of output and all costs are economic costs Total Revenue = 2409 - 0.5 ( Q squared ) Marginal Revenue = 240 - Q Total cost - 2090 + 40Q + 0.5 ( Q squared ) Marginal cost = 40 + Q 6 6 . At the profit - maximizing or loss - minimizing output level economic profit would equal $5 000 $8000 $9 000 $19 000