I'd say B. but i'm not sure. It could be D. aswell
<span>a. buffalo and erie, new york</span>
Steam locomotives had been developed after the steam engine was built in the late 17th century, And with it’s improvement by James Watt had room for improvement of the steam engine. There were prototypes as well that were previously created but several had failed until British Engineer George Stephenson built a successful locomotive called Blucher, and for that reason the first public railway was opened.
The war of 1812 fought between the Great Britain and United States. The war bounded both the countries on the basis of trade. This war created the economic opportunity for United States as war resulted in growth in factory system in United States.
The Embargo Act helped the United States to establish factories for manufacturing goods in domestic line. This act halted the competition from factories of England and France. This act helped domestic producers to sell their products as earlier they were facing competition from France and England
Unlike the fallen Western province of the Roman empire, Justinian and Theodora developed a centralized government where all power and decision-making was concentrated in one unit instead of having power in the hands of many different people in different locations.
