Final answer:
The British ocean liner that was sunk during WWI by a German submarine was the Lusitania.
Step-by-step explanation:
The name of the British ocean liner that was sunk during WWI by a German submarine was the Lusitania. The Lusitania was on its way from New York to Liverpool when it was torpedoed by a German U-boat on May 7, 1915. The attack resulted in the deaths of 1,201 people, including many women and children.
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