A ballasted vessel sinks enroute to a dry dock. Under these circumstances, the vessel's owner can claim __________.

Correct Answer: Option D — actual total loss

An actual total loss occurs when the vessel is completely destroyed or ceases to exist as a ship, such as sinking. Unlike constructive total loss, where repair costs exceed the vessel's value, or partial losses like particular average, an actual total loss represents the total destruction of the insured property.