Sweetie is a rm that sells candy bars at $1.00 each in a monopolistically competitive market. The prot- maximizing firm's marginal cost is $0.50 and output is 500 bars. At this output level, Sweetie's average total cost is $1.00. We can conclude that: O a. Sweetie makes an economic prot of $250 0 b. Sweetie should produce more than 500 bars 0 c. new rms will not want to enter the candy bars market 0 d. more information is needed to conclude any of the above