Question 1805Navigation General

The correct answer is C) Estimated position. The estimated position takes into account the effects of wind and current on the vessel's course and speed. It represents the best estimate of the vessel's location based on the known starting point, course, speed, and the effects of environmental factors like wind and current. This is in contrast to a dead reckoning position, which only considers the vessel's course and speed without accounting for external forces. The other options are incorrect because set position refers to the vessel's actual location, and leeway position specifically refers to the sideways drift of the vessel due to wind, which is just one component of the estimated position calculation.