Answer: D. Write a memo stating everything you currently understand about the problem to the sponsor and ask for feedback.
Step-by-step explanation:
Writing a memo or email to the team sponsor or project leader detailing your current understanding of the problem and asking for feedback is an effective way to gain clarity. This approach allows you to present your understanding, ask specific questions, and receive direct guidance from the person responsible for the project. It also creates a written record of the communication, which can be helpful for future reference and for sharing with the rest of the team.