Which was a consequence of people migrating from the rural areas to the city?
A.
homesteading
B.
bans on immigration
C.
melting pot
D.
slums

D. Slums

Slums are defined as unsafe and unhealthy homes and some of the examples are lack of windows, leaky walls as well as roofs.

Overcrowded homes are limited or access to basic services.

Migration are mainly caused by the different benefits so city offers the compassion greater prospects especially for the employment, health care as well as education.

Explanation:

Concentrated employment in the rural areas for mining, quarrying, logging, oilfields, processing all of that, random local factories, power generation, and transportation infrastructure sustains towns and cities with most rural people, all but the largest farmers, having jobs

c it says nothing about connecting those 2 seas.

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.