A project manager is leading a project that includes several organizations with unique corporate cultures. These diverse corporate cultures are affecting project expectations. The varying expectations often lead to conflicts, which often require the project manager's involvement. What should the project manager do first to evaluate the cultural differences within the organizations? A$)$ Establish a probability and impact matrix and plan response criteria. B$)$ Disregard the situation since it is not hindering the project deliverables. C$)$ Develop a joint policy among the various organizations. D$)$ Escalate the issue to the project sponsor and seek their guidance.