Question

Because trains allowed people to commute to work, ___________ started to grow.

Answer 1

The answer would be SUBURBS. People no longer had to live near their work, this presented opportunity for people to get new jobs that didn't have to be close to home.

Answer 2

Once people could go farther away from home to work and viceversa during the early 20th century, they didn't need to live near to their job's location anymore, thus residential districts on the edge of cities became a convenient course of action, that was how "The Suburbs" were developed by local railroads as new neighborhoods of the cities.

Step-by-step explanation: