The software development project is not going well. There are over 30 stakeholders, and no one can agree on the project objectives. One stakeholder believes the project can achieve a 30 percent improvement while another believes a 50 percent improvement is possible. The project manager thinks a 10 percent improvement is more realistic. What is the BEST course of action ？（）
A．Move forward with the project and look for more information later to settle the issue.
B．Average the numbers and use that as an objective.
C．Perform a feasibility analysis.
D．Ask the sponsor to make the final decision.