$[$Valentine$]$ With Valentine's Day coming up$,$ Susie's Sweets, a candy shop, needs to decide which pink lollipops they will sell for the valentine season. Many manufacturers reach out to the store receptionist, Luci, to promote their product. Luci passes the information to Susie, the owner, but only for the brands that specialize in Valentine's Day candy, and only ones that provided samples. Luci also tells Susie that she thinks Blow Pop is the best brand to work with right now. Susie evaluates each vendor and negotiates a deal with the chosen manufacturer. From there, she signs the cyntract. In this scenario what role$($s$)$ does Luci play?

Influencer

II$.$ Decider

III. Gatekeeper

IV$.$ Purchasing Agent

V$.$ User