Question

president taft’s passage of the mann-elkins act in 1910 continued roosevelt’s legacy of railroad reform by
strengthening the interstate commerce commission.
establishing the interstate commerce commission.
continuing to lower railroad rates.
reestablishing the practice of giving rebates to large companies.

Explanation:

The Interstate Commerce Commission (ICC) was established under the Interstate Commerce Act of 1887, not the Mann-Elkins Act. The Mann-Elkins Act of 1910 expanded the ICC's authority, allowing it to set maximum railroad rates and regulate telephone/telegraph companies, thus strengthening the commission. Lowering rates was not its core focus, and it did not reinstate rebates (which were already restricted by prior reforms).

Answer:

strengthening the Interstate Commerce Commission.