How are the Electronic Bearing Line (EBL) and Variable Range Marker (VRM) utilized together on a marine radar to obtain a coastal position fix?

1. By placing the EBL center on a charted headland to measure its bearing, and adjusting the VRM ring to touch the headland to measure its exact distance
2. By aligning the VRM with the vessel's wake to calculate engine slip
3. By using the EBL to monitor water depth changes over time
4. By adjusting the VRM to detect satellite radio transmissions