A team is deciding on Sprint length. Their market changes quickly, the technology is unfamiliar and stakeholders complain about long gaps between releases. Which reasoning best fits the Scrum Foundations material on choosing a duration?

• ALonger Sprints reduce the overhead of the events, so a four week Sprint is the efficient choice.
• BSprint length should match the average size of the Product Backlog items.
• CShorter Sprints generate more learning cycles and limit risk to one shorter period, which suits high uncertainty and frequent change.
• DSprint length should be set by the release schedule agreed with stakeholders.