The correct answer is B) the US's declaration of war against Spain in 1898.
Joseph Pulitzer and William Randolph Hearst had the most profound impact on "the US's declaration of war against Spain in 1898."
As members of the so-called "Yellow Press" os sensationalist press, Joseph Pulitzer and William Randolph Hearst encouraged the United States to go to war with Spain by writing sensational headlines, by relying mostly on unnamed sources, and by printing rumors as if they were facts.
The Spanish Army repression of the Cuban rebellion was covered by sensationalists or yellow Journalists in the newspapers of the United States, causing the people´s reaction, anger, and the support for the Cubans. On April 24, 1898, Spain declared war on the United States.
