Southron Inc. makes electrical appliances such as toasters, irons and dustbusters. The flexible (variable) cost per unit is $15. Fixed cost is $250,000 per month. The appliances are sold to retailers for $25 each, on average. In a month when 40,000 units are sold, the profit will be O a. $100,000 O b. $150,000 O c. $250,000 O d. there is not enough information to determine this O e. $400,000