Which of these statements best compares the approach of the Tennessee Valley Authority (TVA) with the approach of the Public Works Administration (PWA)?
1) Both the TVA and the PWA focused on infrastructure development.
2) The TVA focused on electricity generation while the PWA focused on public works projects.
3) The TVA was a federal agency while the PWA was a state agency.
4) The TVA was established during the Great Depression while the PWA was established during World War II.