Which of the scrum values is the most demonstrated when a Team completes a task before moving to the next one?

Answer:

Focus

Explanation:

The primary responsibility of the Scrum master is to ensure that the focus of the team remains un-tampered during the sprint. If the product owner has any requirement regarding the addition or modification of the features, it can be discussed with Scrum master and the project manager to understand if the new requirements are in alignment with the project. The Scrum Team need not take part in the meeting unless the product owner and the project manager feel that the requested changes are the part of the current sprint. This allows the team to work without disturbances and focus only on the current sprint.