In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Naval architects never claim that a ship is unsinkable, but sinking of the passenger-and-car ferry Estonia in the Baltic surely should never (1)______. It was well designed and carefully (2)______. It carried the proper number of lifeboats. It had been (3)______ inspected the day of its fatal voyage. Yet hours (4)______, the Estonia rolled over and sank in a cold, stormy night. It went down (5)______ quickly that most of those on board, caught in their dark, flooding cabins, had no chance to save themselves.