How do timeboxes help the Product Owner and the other members of the Scrum Team validate assumptions, adapt, and maximize the value of their product?
A. At the end of each Sprint when the timebox expires a detailed report with all test cases and test results is available
B. Timeboxes assure the Product Owner that the Developers will finish all work on the Sprint Backlog by the end of the Sprint
C. Timeboxes help by making sure a Sprint does not stop until all testing is done, and the work is verified by the Product Owner
D. Timeboxes help minimize risk by creating the opportunity to validate assumptions using feedback from users and the market; allowing Scrum Teams to inspect progress toward the Product Goal and decide whether to pivot or persevere