Use the Table Below to Answer the Following Question(s)using the Standard

Use the table below to answer the following question(s) using the standard Solver.
Coppell Services contracts with outsourcing partners to handle various customer service functions.Based on a study of call volumes provided by one of the firm's partners, the minimum number of staff needed for each hour of the day is as follows:
$\begin{array}{|l|l|}\hline \text { Hour } & \text { Minimum Staff Required } \\\hline 8-9 & 10 \\\hline \hline-10 & 12 \\\hline 10-11 & 10 \\\hline 11-\text { noon } & 8 \\\hline \text { hoon-1 } & 16 \\\hline 1-2 & 15 \\\hline 2-3 & 20 \\\hline 3-4 & 15\end{array}$
Mr.Coppell hires 6 permanent employees and wants to staff the remaining requirements using part-time employees who work 4-hour shifts (four consecutive hours starting as early as 8 A.M.or as late as 1 P.M.) .
-What is the minimum number of part-time employees needed for each 4-hour shift to ensure meeting the staffing requirements?

A) 16
B) 28
C) 24
D) 20