Question: Acme Co. is planning an advertising campaign for their new product. Three commercials have been produced and are ready to air. The costs of airing one commercial during different timeslots of the day are listed in the following table. Acme Co. wants each of the three commercials to air on two different timeslots. In addition, the company does not want all three commercials to air during the same timeslot. Develop a linear programming model to minimize the marketing cost while meeting the requirements above.