How much work must a Development Team do to a Product Backlog item it selects for a Sprint?
How much work must a Development Team do to a Product Backlog item it selects for a Sprint?
A Development Team must perform all the work needed to bring a Product Backlog item to the state of 'Done' as defined in the team's definition of 'Done'. This ensures that each selected item is fully completed and meets the necessary quality standards within the Sprint. The amount of work is determined by what has been agreed upon with the Product Owner.
B is correct