The project manager should schedule a one-on-one meeting with the team member to talk about the issue and get their cooperation. This is an example of the problem-solving technique, which involves confronting the issue directly and cooperatively to find a mutually acceptable solution1. This technique is usually the most effective way to manage conflict in a project team2. Scheduling a meeting with the team member and their manager to discuss the issue (A) is not a good option since it may create a sense of distrust and resentment in the team member. Talking to the project sponsor about the team member's attitude (B) is also not advisable since it may escalate the conflict and damage the relationship between the project manager and the team member. Finding another person to replace this team member (D) is not a viable option since it would disrupt the project schedule, budget, and scope. References:
* 1: A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Seventh Edition, Chapter 9, Section 9.5.2.2
* 2: A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Seventh Edition, Chapter 9, Section 9.5.2.3