Question

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Answer 1

Answer:

from roads to canals to railroads

Explanation:

Better transportation infrastructure or transportation revolution in the early 19th century begins when people started crude roads instead or horses or river routes and then canals were built. After canals long the railroads crisscrossed the country that helped people and goods to move with greater efficiency. These technological developments in travel during the 19th Century  connects the world  and affects the national economy at high level.

Hence, the correct answer is "from roads to canals to railroads".