Which type of information is allowed to be passed according to communication protocols?

The choice highlighting characteristics of lights and magnetic bearings is the appropriate selection because it aligns with established communication protocols that emphasize the importance of navigational safety and efficiency. This type of information is critical for vessels in ensuring safe navigation and operational awareness.

Specific details about lights, such as their configurations, colors, and visibility ranges, along with magnetic bearings, are essential for pilots and navigators to understand their positioning relative to other vessels and navigational aids. This information contributes to safe maritime operations, which is a primary concern in marine communications.

Non-specific navigational advice, while useful, lacks the detail required to be actionable in critical situations. Detailed vessel repairs and personal information about crew members do not pertain to navigational safety and could lead to breaches of operational security or privacy issues.