area and a 0 indicates it does not cover the area. Min s.t. Area 1 Area 2 Area 3 Area 4 Area 5 Area 6 Area 7\( x_{i}=0,1\) for \( i=\mathrm{L},\mathrm{M},\mathrm{N},\mathrm{O},\mathrm{P},\mathrm{Q},\mathrm{R}\)(b) Build a spreadsheet model for this problem. Solve the model. Which locations are chosen? (Select all that apply.)Substation L Substation M Substation N Substation O Substation P Substation Q Substation R \begin{tabular}{|l|l|l|l|l|l|l|l|}\hline & Substation L & Substation M & Substation N & Substation O & Substation P & Substation Q & Substation R \\\hline Area 1 & 0 & 0 & 0 & 1 & 1 & 1 & 1\\\hline Area 2 & 1 & 0 & 0 & 0 & 0 & 0 & 1\\\hline Area 3 & 0 & 0 & 1 & 0 & 0 & 1 & 0\\\hline Area 4 & 1 & 1 & 1 & 0 & 0 & 0 & 0\\\hline Area 5 & 1 & 1 & 0 & 1 & 1 & 1 & 1\\\hline Area 6 & 0 & 1 & 1 & 0 & 1 & 0 & 0\\\hline Area 7 & 0 & 0 & 0 & 1 & 1 & 0 & 1\\\hline\end{tabular}