What do I use to solve this problem: Your focus groups revealed that site location factors preferred by potential customers were $($A$)$ proximity to where they live, $($B$)$ near a major intersection, $($C$)$ other shopping nearby, $($D$)$ close to the emergency vet clinic on Oleander Drive, $($E$)$ ease of access to your store, $($F$)$ and an open area surrounding the facility to walk their dogs before and after a visit to your store. Your research also developed importance weights for these factors as follows: A$-9,$ B$-7,$ C$-4,$ D$-6,$ E$-8,$ and F$-3.$Based on these factors, you have narrowed your site selection to three potential sites, $1,2,$ and $3($below$),$ with Scores for the factors as follows: