Which scenario requires a vessel to reduce speed?

Answer: B — When entering a narrow pass

Reducing speed when entering a narrow pass is crucial for safe navigation. Narrow passes typically have restricted maneuverability and may be congested with other vessels or obstacles. By slowing down, a vessel can more easily react to sudden changes in the situation, such as encountering another vessel or unpredictable currents. This practice helps prevent accidents and maintains control of the vessel in potentially hazardous conditions. In narrow waters, it is essential for the safety of all vessels involved and helps ensure that adequate distance can be maintained from other craft, allowing for safer passage.