Whose task it is to ensure that the product flows logically from one step to another?

A. graphic designer

B. web developer

C. UX designer

D. UI designer

UX i believe. Web designer and graphic designer are visual which is the basis of UI. Think of UX as User eXperience and in order to have a good experience it has to flow. If it can flow then u can design it. Think of UX as the skeleton and UI is the flesh