In a crossing situation, what should a give-way vessel do?

In a crossing situation, a give-way vessel is required to take action to avoid a collision with the stand-on vessel. This responsibility includes not crossing ahead of the stand-on vessel, as doing so could lead to a hazardous scenario where the stand-on vessel may not have enough time or maneuverability to react appropriately.

The give-way vessel's primary obligation is to keep clear of the stand-on vessel's path, which enhances safety and minimizes the risk of collision. By avoiding crossing ahead, the give-way vessel ensures it is respecting the navigational hierarchy established by the rules of the road at sea.

While altering course or reducing speed may be appropriate actions in certain situations, the fundamental responsibility of a give-way vessel is to make sure it does not endanger the stand-on vessel by crossing in front of it. Therefore, option A is the correct response.