The Scrum Guide defines the Daily Scrum as a 15-minute time-boxed event: "The Daily Scrum is a 15-
minute event for the Developers of the Scrum Team." This duration is fixed regardless of Sprint
length, ensuring consistency and focus on synchronizing work and identifying impediments. Option A
refers to a scheduling practice, not the time-box. Option B is arbitrary and not Scrum-defined. Option
C is far too long and contradicts the Scrum Guide. Option E incorrectly suggests variability based on
Sprint length, which isn’t supported—15 minutes is the standard. Thus, D is the correct answer.
Reference: Scrum Guide (2020), Section: "Daily Scrum."