To enhance collaboration among virtual teams, especially when one team feels isolated due to time zone differences, the project manager should consider implementing strategies that promote inclusive communication and regular engagement.

Option A, scheduling weekly progress meetings with all three teams, ensures that each team has the opportunity to be heard and to participate actively in the project’s progress. This approach fosters a sense of unity and allows for synchronous communication, where immediate feedback can be provided and all teams are updated simultaneously12.

Option C, updating the communications management plan, is crucial for addressing the current issues faced by Team A. By encouraging all teams to review the communications plan promptly and proactively, the project manager can ensure that information dissemination is timely and no team is left out of the loop. This step also allows for the identification of any gaps in the current communication strategy and the implementation of improvements to facilitate better collaboration12.

While the other options may have their merits, they are not as immediately impactful as A and C for addressing the current challenges of feeling left out and information delays experienced by Team A.