During the Progressive Era, Wisconsin became known as a "laboratory of democracy" under the leadership of Governor Robert M. La Follette. What was the central principle of the "Wisconsin Idea" that he championed?
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A
Limiting the state's government to only the powers explicitly listed in the Constitution.
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B
Using government power to make life better for the state's citizens through reforms and expert advice from the university system.
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C
Promoting the interests of large railroad and lumber corporations to rapidly grow the state's economy.
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D
Isolating Wisconsin from national politics to focus solely on agricultural issues.