You are inbound in a channel marked by a range. The range line is 216°T. You are steering 213°T and have the range in sight as shown in illustration D048NG below. Which action should you take?

Correct Answer: Option A — Immediately alter course to the right to bring the range in line.

Inbound on a range line of 216°T while steering 213°T places the vessel to the left of the trackline. Visual inspection showing the range markers separated requires an immediate alteration of course to starboard (right) to drive the vessel back onto the desired transit.