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. Which of the following is true about Haya's supply chain?

A) Haya's supplier is downstream in her supply chain.
B) Haya's customers are upstream in her supply chain.
C) If a customer returns a tie, that is known as reverse logistics.
D) Haya has no information flows.
E) Haya's supplier is the only other link in her supply chain.