Question

what inventor revolutionized urban growth in the u.s. through his work in developing the elevator?
a john deere
b elisha otis
c andrew chase
d thomas edison

Explanation:

Elisha Otis is known for inventing the safety elevator. Before his invention, elevators were not widely used in urban areas due to safety concerns. His safety brake mechanism made elevators much safer, which was crucial for the construction of taller buildings in cities. This, in turn, revolutionized urban growth as it allowed for more efficient use of urban space with the development of skyscrapers. John Deere was a key figure in agricultural inventions (like the steel - plow). Thomas Edison had numerous inventions (such as the light bulb). Andrew Chase is not as prominently associated with the elevator invention as Elisha Otis.

Answer:

B. Elisha Otis