Two critical members have approached the project manager separately regarding personality conflicts. The project manager cannot remove either from the project or separate their work activities. To help resolve the conflict, which of the following would be BEST for the project manager to do?

A. Send an email to the entire project team encouraging proper etiquette.
B. Discuss the problem during the next daily status update.
C. Perform an in-person meeting involving both parties.
D. Schedule a mandatory team-building activity.