How did newspaper circulation change from the 1900s to the 1930s?

The correct answer to this open question is the following.

Newspaper circulation changed from the 1900s to the 1930s in the following ways. The muckraker's journalists started to develop serious investigations about corruptive practices inside US politics, revealing a network of corruption in the government. Circulation increased because more people became interested in the news. It was President Theodore Roosevelt who coined the term muckraker in 1906. In that time, Yellow journalism led by William Hearst (New York Journal) and Joseph Pulitzer (New York World) managed the news in a sensationalistic way to attract more readers, and the circulation maintained its numbers.

frederick the great and the war of austrian succession. frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. he also declared himself king of bohemia, and maria theresa sent troops to retake bohemia. in august he led 80,000 of these men across the frontier into bohemia, his