Which of the following made the scale of suburban growth possible? A. travel and tourism B. high-interest loans C. interstate highways D. multinational corporations

C. interstate highways

The construction of interstate highways was a major factor that made the scale of suburban growth possible. After World War II, the United States experienced significant changes in its urban planning and transportation systems. Among these changes, the Federal-Aid Highway Act of 1956 played a crucial role by funding the construction of a national network of interstate highways.

The interstate highway system facilitated easier and faster transportation between urban centers and outlying areas, which encouraged the movement of people to the suburbs. It allowed for daily commuting to city jobs while living in less crowded and often more affordable suburban neighborhoods. The development of this extensive road network reduced travel time, made automobile travel more convenient, and led to an increase in car ownership. As a result, Americans could live farther from where they worked, and this directly contributed to the explosion of suburban development in the 1950s and beyond