Look at the graph below, which shows the population of the United States from 1790 to 1910. A graph titled U S Population Growth in millions where the years 1790 to 1910 are shown on the x-axis and the population range is on the y-axis. A line begins at 5 at 1790, rises gradually to 20 at 1840, then rises dramatically to 90 at 1910.

During the Gilded Age the US population rose
from 15 million in 1830 to nearly 30 million in 1850.
from 15 million in 1830 to nearly 40 million in 1870.
from nearly 40 million in 1870 to nearly 80 million in 1900.
from nearly 40 million in 1870 to nearly 100 million in 1950

overtime, the civil rights movement changed in a way that not only it benefited african-americans, but benefited other ethnicity's such as latinos, asians, or women too! that's why the results of the movement be called mixed.

the civil rights movement brought about tremendous changes. no longer were blacks denied the right to vote, to eat, shop, and swim where they , and more importantly, to attend integrated schools. despite its many accomplishments, however, the civil rights movement had its shortcomings. for example, many people, both young and old, lost their lives, homes, jobs, and families. still other individuals were so damaged by psychological trauma that they ceased being productive members of the community. the movement left intact the economic inequities that had contributed to the maintenance of segregation. and finally, racism remained alive and well long after the movement's end. like most movements of its kind, the civil rights movement left behind a mixed legacy of triumph and tragedy.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

deflation   hope this