(A) U.S. Maine
(B) ** Lusitania
(C) Titantic
(D) Princess
EXPLANATIONS BELOW
Concept note-1: -On May 7, 1915, the German submarine (U-boat) U-20 torpedoed and sank the Lusitania, a swift-moving British cruise liner traveling from New York to Liverpool, England. Of the 1, 959 men, women, and children on board, 1, 195 perished, including 123 Americans.
Concept note-2: -The RMS Lusitania was a UK-registered ocean liner that was torpedoed by an Imperial German Navy U-boat during the First World War on 7 May 1915, about 11 nautical miles (20 kilometres) off the Old Head of Kinsale, Ireland.
Concept note-3: -The Lusitania became a focus for British and American propaganda and was used to bolster recruitment efforts. However, Germany claimed that the sinking was justified because munitions were being carried on board.
Concept note-4: -On the afternoon of May 7, 1915, the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. Within 20 minutes, the vessel sank into the Celtic Sea.