How should the Developers react, when they realize that they have overcommitted themselves in a Sprint?

How should the Developers react, when they realize that they have overcommitted themselves in a Sprint?
A . They should collaborate with the Product Owner and decide together how to adjust the Sprint Backlog.
B. They should ask the Scrum Master to cancel the Sprint.
C. They should keep this information to themselves until the next Sprint Review.

Answer: A

Explanation:

The Scrum Master is not allowed to cancel the Sprint. It is not a good idea to keep the information, it is expected to immediately get into discussion with the Product Owner to discuss the adjustments needed.