Correct Answer: A, B, ESeveral factors could have led to the internal sponsors' dissatisfaction with the product's progress. First, the Product Owner may not have engaged with the sponsors frequently enough, failing to keep them updated on the project's progress and thus leading to misaligned expectations. Second, sponsors may not have taken advantage of Sprint Reviews to engage, inspect, and evaluate progress effectively, missing opportunities for course correction. Third, lack of transparency within the Scrum process, which is essential for open communication and alignment, may have contributed to the misunderstanding. The Scrum Master is responsible for fostering this transparency, which helps ensure that all stakeholders are aware of the current project status and any issues that might arise.