Curve A in the Design Limits of Legs Chart of the Coastal Driller Operating Manual, shows the operating limits during severe storm conditions during transit based on __________.

Correct Answer: Option B — stability and leg strength

Operating manuals for units like the COASTAL DRILLER establish environmental and loading boundaries. Curve A on the Design Limits of Legs Chart accounts for combined intact stability criteria and maximum allowable leg structural strength under severe storm transit conditions.