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 can put an announcement on the school's monitors that would display in the dining halls and student union.
Haya begins to notice that her sports ties are selling really well. Which of the following should be her next step?

A) Target marketing campaigns
B) Cross-sell
C) Insights into her products
D) Customer profitability analysis