The correct answer is answer C ("To condemn the policies of this predecessor").
In 1956, Nikita S. Khrushchev (a very important figure for the Soviet Union) gave his infamous speech at a closed congress session of the Communist Party. His purpose was to destroy the figure of Stalin by denouncing the abuse of power from the dictator (criticizing his policies of wide-spread mass terror in detail) and also condemn is ineffectiveness at defending the Union from the German Invasion.
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Lee Harvey Oswald
According to Wikipedia and History.com
Five government investigations concluded that Oswald shot and killed Kennedy from the sixth floor of the Texas School Book Depository
Resident Franklin Roosevelt's foreign policy focused on moving the United States from isolation to intervention. He started this movement cautiously by establishing diplomatic relations and opening trade markets with the Soviet Union and Latin American through the Good Neighbor Policy.
It stretches along a long coastline
