The Knights of Labor was the group that had a political outlook that is similar to that of the Populist farmers in the late 1800s.
The farmer belong to the Populist Party that is created out of agrarian economic and political protest but was short lived and passed into history.
As the first major labor organization, the Knights of Labor also shared the political outlook of the Populist farmers in the late 1800s
Therefore, the Option B is correct.
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