Which of the following was the spark that caused progressive reformers to push for improved public service?

here are the answer choices, i need help too! :)

Which of the following was the spark that caused progressive reformers to push for improved public services?

a The election of Theodore Roosevelt as president

b The rapid increase in urbanization

c The completion of the transcontinental railroad

d The opening of public schools

Explanation:

americans experinced rations on food and be gangrene their own food and feed their families going to go over jobs that were orginally only for men.

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