When two vessels are in a crossing a situation the vessel that must maintain course and speed (Vessel B) is referred to as?

In a crossing situation, the vessel that must maintain its course and speed is referred to as the "stand-on vessel." The stand-on vessel is obligated to continue on its current path while the other vessel, known as the "give-way vessel," must take action to avoid a collision. This rule is part of the International Regulations for Preventing Collisions at Sea (COLREGs).