The Federal-Aid Highway Act of 1956 and the growth of suburbs both had a negative impact on

the government's spending.

the nation's cities.

the beat generation.

the baby boom.

ed2020

B. the nation's cities.

The answer is: The nation's cities

Constructing this massive project came with massive backlash from people living within the city since constructing said roadways interfered and in many cases displaced people from their homes and caused damage to the neighborhood in the area.