During coastal piloting, a navigator uses a danger bearing to supplement the fix. According to Bowditch, the primary purpose of this technique between fixes is to:

1. A. Provide a running fix when only one charted object is visible
2. ✓ Keep the vessel off charted hazards between fixes using a single charted objectCorrect
3. C. Determine the vessel's set and drift by comparing observed to DR position
4. D. Establish a line of position that can be advanced along the DR track