What is the rest of the question?
Answer:Q1 is false
Q2 corrupt
Explanation: 1. Muckrakers mainly exploited big businesses
2. Political machines are small groups of people who’s main goal was to get their own candidates elected for all the top jobs the city has to offer, once in control they used that power to make their leaders rich
"c. A narrative source" is what a historian would use to get a firsthand account of a past event, since in these sources (which are also primary sources) a person is giving a first-hand account of the event itself.