You are on vessel "A" and approaching vessel "B". You are not sure whether your vessel is crossing or overtaking vessel "B". You should _____________.

In the scenario where you are unsure whether your vessel is crossing or overtaking another vessel, it is important to prioritize safety and navigational rules. By considering the situation as overtaking, you acknowledge that you are behind vessel "B" and have a responsibility to navigate in a way that avoids collision. In overtaking situations, the vessel being overtaken typically has the right of way, meaning that it is your duty to maintain a safe distance and proceed cautiously.

This approach is prudent because it reflects the rules that govern navigation. When in doubt, treating the situation as an overtaking scenario illustrates a cautious mindset, helping to avoid misunderstandings or aggressive maneuvers that could lead to a collision. By assuming you are overtaking, you are more likely to act defensively, adjusting your speed or course as necessary to ensure that you do not impede or endanger the other vessel. This contributes to safer boating practices and aligns with the expectations set forth by the navigation rules.