Question

what is a muckraker?
a crime boss able to take advantage of others by rigging government contracts
a gossip columnist intent on finding the flaws in presidents
a farmer able to raise crops despite the difficulties in obtaining credit
an investigative journalist who wanted to uncover the truth about corruption

Explanation:

Muckrakers were investigative journalists in the early 20th century. Their main goal was to expose corruption in various aspects of society, such as business and government. They played a crucial role in bringing about social and political reforms by revealing the truth about unethical practices.

Answer:

an investigative journalist who wanted to uncover the truth about corruption