Multiple choice

A major cause of the growth of the federal and state highway systems were

  1. increased use of the mass transit system

  2. increased interstate trade

  3. the baby boom

  4. rapid growth of suburbs

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The post-WWII era saw a massive migration to the suburbs. This necessitated the construction of highways to connect residential areas with urban job centers.