A department store chain has up to $20,000 to spend on television advertising for a sale. All ads will be placed with one television station, where a 30-second ad costs $1.000 on daytime TV and is viewed by 14,000 potential customers, $2.000 on prime-time TV and is viewed by 24,000 potential customers, and $1,500 on late-night TV and is viewed by 18,000 potential customers. The television station will not accept a total of more than 15 ads in all three time periods. OA The maximum number of potential customers who see the ads is people when daytime ads, prime-time ads, and Late-night ads are placed. OB. There is no way to maximize the number of potential customers. Include an interpretation of any nonzero slack variables in the optimal solution OA In this case, 4,000 ads not used. O B. In this case, ,4,000 dollars not used and s, 10 ads not used. O C. In this case, s10 dollans not used. OD. There are no nonzero slack variables in the optimal solution.