You are inbound in a channel marked by a range. The range line is 309°T. You are steering 306°T and have the range in sight as shown in illustration D047NG below. The range continues to open. What action should you take?

Correct Answer: Option B — Alter course to the left until the range closes, then steer to the left of 306°T.

When a range opens to port while steering left of the range line, alter course left to close the range, then steady up to the left of the original heading to compensate for set.