(A) Imperialism
(B) ** Yellow Journalism
(C) Muckrakers
(D) Tabloids
EXPLANATIONS BELOW
Concept note-1: -Yellow journalism was a style of newspaper reporting that emphasized sensationalism over facts. During its heyday in the late 19th century it was one of many factors that helped push the United States and Spain into war in Cuba and the Philippines, leading to the acquisition of overseas territory by the United States.
Concept note-2: -yellow journalism, the use of lurid features and sensationalized news in newspaper publishing to attract readers and increase circulation. The phrase was coined in the 1890s to describe the tactics employed in the furious competition between two New York City newspapers, the World and the Journal.
Concept note-3: -Once US opinions were inflamed over Cuba, Hearst in particular tried to do everything he could to whip the public into such a frenzy that a war would start. Once the country was at war, Hearst had little doubt his papers would have no end of interesting and sensational articles to publish.