Final answer:
In Scrum, a sprint is a set period for completing work, which can typically last from one to four weeks, with two weeks being common. Therefore, the correct answer is D. Two-week development iteration.
Step-by-step explanation:
Within a scrum, a sprint is defined as a short, time-boxed period where a team works to complete a set amount of work. Among the options provided, D. Two-week development iteration would be classified as a "sprint". Sprints are a core component of the Scrum framework in Agile methodologies, used for developing, delivering, and sustaining complex products.
A sprint often lasts between one to four weeks, with two weeks being a common duration. In contrast, a daily meeting (A) refers to the daily stand-up or scrum meeting, requirement gathering (B) is a part of product backlog refinement, and product launch (C) is an event that may occur after several sprints.