How did philosophers of the middle ages study nature?
they accepted things as they appeared.
they tested their ideas for correctness.
they conducted experiments.
they used accurate measurements.

it is C

Explanation:

roosevelt, a progressive reformer, earned a reputation as a "trust buster" through his regulatory reforms and anti-trust prosecutions. his "square deal" included regulation of railroad rates and pure foods and drugs; he saw it as a fair deal for both the average citizen and the businessmen.