Four consumers are willing to pay these amounts for haircuts, and four haircutting businesses have these costs: Consumers' Willingness to Pay Dmitri: $35 Antonio: $50 Caroline: $40 Frances: $25 Each firm has the capacity to produce only one haircut. For efficiency, Which businesses should cut hair? Check all that apply. Firm A Firm B Firm C Firm D Which consumers should have their hair cut? Check all that apply. Antonio Caroline should be given. Dmitri Frances The maximum possible total surplus is $ Firms' Costs Firm A: $25 Firm B: $40 Firm C: $30 Firm D: $45