CAPM Practice: Determine how to plan project iterations

A timebox is a fixed period of time for an activity. Iterations are timeboxed — if the team doesn't complete all planned work, the iteration ends anyway and incomplete items return to the backlog.

**Why not A:** Timeboxing is a scheduling technique applied to activities and iterations — it has nothing to do with restricting individual team members' working hours. Agile teams are self-organizing and autonomous in how they manage their personal schedules. Conflating timeboxing with shift-based work scheduling reflects a fundamental misunderstanding of the concept.

**Why not C:** Limiting backlog size is a backlog management practice, not a timeboxing concept. Timeboxing governs the duration of events and iterations, not the quantity of items in a list. The product owner manages backlog size through prioritization and grooming, independent of any timebox.

**Why not D:** The timing consistency of daily standups is a convention that supports predictability and team habit formation, but it is not what "timebox" means. Timeboxing refers to fixing the total duration of an activity — a standup is itself timeboxed to 15 minutes, regardless of what time of day it begins.