Your project entails developing an app that will unlock your front door to allow deliveries from your favorite online services. The app will unlock the front door, detect and record how long the door was open, detect that a package or box was deposited on a delivery mat that is just inside the door, and then relock the door 60 seconds after the mat senses a package was placed there. At the beginning of the sprint, the product owner will pull the user stories that should be worked on during the upcoming sprint and team members will break them down into tasks and estimate their durations. Which of the following are true regarding this question?

A. The product owner will develop the project timeline based on the estimates the team members give for each sprint.

B. This question describes the sprint planning meeting that is held at the beginning of each sprint.

C. The Scrum master will provide the team with the tools and techniques that will work best to break down tasks and determine estimates.

D. This question describes agile release planning because it's a large project that can be broken down into releases and then user stories can be created for each release.