In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 400 feet water depth, the offset is 7%. Completely slacking mooring lines 7 and 8 reduces the offset to __________.

Correct Answer: Option C — 4.0%

Station-keeping analysis during severe storms accounts for vessel offset relative to anchor pattern geometry. For the DEEP DRILLER in 400 feet of water with starboard bow weather, completely slacking leeward mooring lines 7 and 8 reduces the net positional offset from 7% down to 4.0%.