You are enroute to assist vessel A. Vessel A is underway at 6 knots on course 133°T, and bears 343°T at 92 miles from you. What is the time to intercept if you make 9 knots?

Correct Answer: Option D — 6h 43m

Solving the relative motion triangle using target course, speed, initial range, and bearing yields a closing speed and running time of 6 hours 43 minutes at 9 knots, adhering to standard Bowditch relative movement navigation techniques taught in USCG licensing examinations.