Question

why did some national leaders support large transportation systems?
a. the government could charge higher tariffs for getting goods to people on the frontier.
b. it was a way to get goods to markets faster and at a lower cost, which would help the economy.
c. building these systems would mean that land could be given to the railroad companies.
d. fast and low - cost transportation would reduce the need for slave labor on farms and plantations.

Explanation:

Large - scale transportation systems improve the efficiency of goods - movement. Faster and cheaper delivery of goods to markets stimulates economic growth by increasing trade volume and reducing costs. Higher tariffs (Option A) are not the main reason; giving land to railroad companies (Option C) is a secondary aspect; and reducing the need for slave labor (Option D) is not the core motivation for supporting transportation systems.

Answer:

B. It was a way to get goods to markets faster and at a lower cost, which would help the economy.