The correct option is "A. Lusitania "
The sinking of the RMS Lusitania, which occurred off the coast of Ireland on May 7, 1915 due to the attack of a German submarine, was one of the greatest naval disasters to have occurred to a line ship during the First World War.
The Lusitania had the misfortune to fall victim to a torpedo shortly after the start of the First World War, before techniques for the evasion of submarines were implemented. The contemporary investigations of the accident that took place in the United Kingdom and the United States, about the precise causes that had caused the loss of the ship were obstructed due to the necessities of keeping secrets in time of war, as well as to the propaganda campaign parallel to ensure that all the blame fell on the German enemy. The debate over whether the ship was a legitimate military objective continued throughout the war, while both sides made confused statements about the incident. At the time of the sinking, the Lusitania carried on board a large amount of ammunition and military equipment, in addition to civilian passengers. Over the years after the sinking, various attempts have been made to dive into the wreck and gather accurate information about how the ship sank, and the debate continues.
The answer is C) over time Native American slaves were replaced by African slaves because the Native Americans were dying of diseases
Costa Rica has no legitimate military. On the other hand, the
country has a small paramilitary forces. Costa Rica has not suffered a civil
war ever since 1948. Costa Rica preserves a small number of forces capable of
law enforcement, but then again the country has no stable standing armed forces.