How much time is required after a Sprint to prepare for the next Sprint?

How much time is required after a Sprint to prepare for the next Sprint?
A . The break between Sprints is time-boxed to 1 week for 30 day Sprints, and usually less for shorter sprints.
B . Enough time for the requirements for the next Sprint to be determined and documented.
C . Enough time for the Development team to finish the testing from the last Sprint.
D . None. A new Sprint starts immediately following the end of the previous Sprint.
E . All of the above are allowed depending on the situation.

Answer: D

Explanation:

The correct answer is D, because there is no gap between Sprints in Scrum. The Scrum Guide states that “a new Sprint starts immediately after the conclusion of the previous Sprint.” Therefore, there is no time required after a Sprint to prepare for the next Sprint.