Question 153Navigation General

The correct answer is C) Alter course to give a wide clearance. The regulations require that vessels alter course and reduce speed to provide a wide berth to northern right whales, which are an endangered species. Maintaining course and speed (option A) would be unsafe and illegal. Reporting the whale's position (option B) is also important, but does not address the immediate need to maneuver the vessel to avoid a collision. Doing all of the above (option D) is correct, but option C specifically addresses the critical step of altering course, which is the most important action to take in this situation.