A project manager is assigned to lead an infrastructure project spanning several countries and multiple time zones within a subregion. Most team members will likely never meet in person but must collaborate to deliver the project. What should the project manager do to ensure effective collaboration among remote team members?

The most effective action is to plan a communication method and allow virtual interaction. This directly addresses the challenge of remote teams across time zones by establishing clear channels and opportunities for collaboration. Without a structured communication plan, team members will struggle to coordinate efforts, share information, and resolve issues. Discussing concerns with the sponsor and amending the charter for more budget for interactions is less direct; while budget can help, it doesn't solve the immediate communication challenge. Creating a social media group might foster team spirit but isn't a formal communication plan for project work. Setting ground rules is good, but recording a contingency plan in the risk register is reactive and doesn't proactively establish communication for collaboration.