Which answer best describes why towns and cities were built around railroads and canals? (5 points)

a
The government and transportation companies planned to build the cities.

b
The canals and railroads were designed to pass through areas well suited for towns.

c
People who worked on the trains and canal boats needed places to stay when they traveled.

d
Land was cheap, and the railroads and canals brought inexpensive goods to the newly settled areas.