Haya Noticed That College Students Needed to Dress Up for Presentations

Haya noticed that college students needed to dress up for presentations but never seemed to have any ties, or at least not very nice ones. She decided she was going to set up a tie store on her campus and offer sports themed ties as well as solid colored ties in her school colors. She has built up a fairly good clientele and is wondering what else she can do to sell and keep in touch with her customers.
Her friend Nitesh offers to build her a mobile CRM app. She first needs to think about what a mobile CRM app could do for her. Which of the following is not an activity a mobile CRM would do for her business?

A) Send a coupon to a loyal customer when they are near her tie store.
B) Allow customers to order a tie and pay for it.
C) Join her loyalty program.
D) Do customer profitability analysis