Which user story is NOT mandatory to have in the Opening Sprint Backlog?
A. As a Scrum team, we want to have a WoW (way of work)
B. As a Scrum team, we want to know product vision
C. As a Scrum team, we want to implement an initial framework
D. As a user, I want to log into the app, so that I
can control the machine
Answer: D