B. Constitution
...is the answer to your question :)
Answer:
The muckrakers were reform-minded journalists in the Progressive Era in the United States (1890s–1920s) who exposed established institutions and leaders as corrupt. They typically had large audiences in popular magazines.
Explanation:
The correct answer is B.World War I
Modernists are a direct response to WWI and many of them such as Hemingway even participated in it.
