For the purpose of transparency, when does Scrum say a valuable and useful increment must be available? (Choose the best answer)

A. After the Acceptance Testing phase
B. Before the release Sprint
C. Every 3 Sprints
D. At the end of every Sprint
E. When the Product Owner asks to create one

Correct Answer: D

According to Scrum, at least one usable Increment should be produced during each Sprint