A critical change has been implemented, which the project manager needs to communicate to the project team. Which of the following would be the BEST method for communicating the change?

Fax is outdated, unreliable for reaching distributed teams, and does not offer the accessibility or digital traceability of email.

Social media is informal and insecure, making it inappropriate for distributing critical project change information.

Printed mailing is too slow for a critical change notification and cannot guarantee timely or confirmed receipt.

Email is preferred for critical change communication because it produces a timestamped written record, can include detailed explanations and attachments, reaches all team members simultaneously, and gives recipients a permanent reference document. This combination of traceability, detail capacity, and reach makes it the most appropriate channel for important project announcements.

Text messages are informal, character-limited, and lack the structured documentation required for communicating a critical project change.