Which answer best describes robert fulton's role in the history of transportation in america?

a) fulton invented the first steamboat.

b) fulton built the first successful steamboat.

c) fulton's steam engine was used to build roads.

d) fulton's steam engine powered the first locomotive.

The correct answer is B. Robert Fulton built the first successful steamboat.

Explanation:

Robert Fulton was an American engineer and inventor.  In England, he began to practice engineering, in particular steam engines, and made numerous inventions regarding duct construction. In 1793 he made a first plan to operate steamboats. After 1797, Fulton in Paris continued his studies and experiments. There he proposed, among other things, an underwater boat, called Nautilus, which was armed with blasting balls, which he called "torpedoes". The proposal was offered to both the French and English government, but was rejected by them. Even the steamboat which he built and which, in 1803, with great success made his test tour of Seine, attracted little notice among the Parisians.  

Fulton, who entered into a company with the American envoy in Paris, moved in 1806 to New York, where in 1807 he built the first steamboat, which came into practical use and yielded some return. This steamboat, Clermont, which was 42.67 meters long and had a machine of 20 horsepower, sailed, among other things, on the Hudson River between New York and Albany. The steamboat trade in New York, on which Fulton was first granted exclusive privilege, soon spread to the great American rivers and greatly accelerated the colonization and development of the surrounding states.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.