Which of the following describes President Theodore Roosevelt's impact on the transportation industry in the United States?
A. He supported legislation that gave the Interstate Commerce
Commission real power over railroad companies.
B. He temporarily banned all railroad expansion to prevent the
destruction of potential national forest lands.
C. He encouraged the foundation of new railroad companies owned
by African Americans.
D. He ended trust busting" policies of his predecessors to encourage
the growth of large railroad corporations.