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.

the answer is d. selective incorporation. (apex)

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”

the constitution gives congress the power to regulate commerce "among" the several states.