Why would a community's long-term plan include a new mass transit system ?

because the federal government provided money for mass transit

because roads and bridges are in poor condition

because people will no longer need roads in the future

because its population is expected to grow over the next 20 years

D. Because it's population is expected to grow over the next 20 years.

Explanation:

Got it right on the test

there are two main types of historical sources: primary sources and secondary sources. a primary source is something that originates from the past. it can be a chronicle, a piece of pottery, or even a piece of glacial ice that gives us climate data about the levels of atmospheric carbon one thousand years ago.

the answer is the government.