Final answer:
The team should agree on the length of the Sprint, taking the size and complexity of the project into consideration. Sprints are commonly two weeks long.
Step-by-step explanation:
The correct approach for determining the Sprint length in Agile project management is option d: The team should agree on the length of the Sprint, taking the size and complexity of the project into consideration.
The Sprint length is typically determined through collaborative decision-making by the project team. The team should consider factors such as project complexity, team capacity, and the organization's goals and constraints.
The Sprint length can vary based on the nature of the project, but a common practice is to have Sprints of two weeks duration. This allows for iterative development and frequent feedback.