Final answer:
Progressive policies were not only achieved at a state level, but also at a national level through legislative and constitutional changes.
Step-by-step explanation:
The statement that progressive policies were only achieved at a state level is not accurate. The efforts of the Progressives extended to the national level, resulting in significant legislative and constitutional changes. For example, trusts and monopolies were regulated under legislation like the Sherman and Clayton Acts, consumer safety was guaranteed through the Meat Inspection Act and the Pure Food and Drug Act, and a new Labor Department was created to address labor abuses. Additionally, lands were set aside for preservation and conservation with the National Reclamation Act and the National Park Service, and the banking system was stabilized through the establishment of the Federal Reserve.