The correct answer is A. By limiting the fees railroads could charge for carrying freight
Step-by-step explanation:
In the U.S. Progressivism was a popular movement that emerged at the beginning of the 20th century. This movement mainly focused on addressing issues derived from the latest advances, this included industrialization, pollution, and corruption. In the case of railroads, progressives believed railroads should belong to the government and should be regulated by this. This was caused by the high and unfair tariffs imposed by railroad industries to citizens especially in the case of freight, as a result, progressives wanted to limit the fees railroads could charge (Option A.)