I want to know the solution to this problem done by excel solver!

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Staffing Problem A famous restaurant is opening 7 days a week. The number of customers visiting the restaurant, on average, varies day by day. In order to serve customer, the manager wants to hire part-time employees and build a staffing plan. The following table shows the minimum number of part-time workers needed during each day. Day Monday Number of servers required 9 8 Tuesday Wednesday Thursday Friday Saturday Sunday 14 7 15 18 6 The manager is considering several options. Option A : The manager plans to hire the same number of employees everyday. That is, a set of employees works every day. Option B : The manager plans to hire two cohorts. One cohort works Monday, Wednesday, Friday, and Sunday. The other cohort works Tuesday, Thursday, and Saturday. Option C : The manager plans to hire according to the rule: Each worker can choose what day to start working. Once an employee chooses a day, he/she must work three consecutive days. (e.g., Wednesday-Thursday-Friday) Option D : The manager plans to hire according to the rule: Each worker can choose what day to start working. Once an employee chooses a day, he/she must work two consecutive days. (e.g., Wednesday-Thursday) Determine which plan minimizes the labor cost for the manager (assuming labor cost is constant for all days)