A line graph titled United States Urban and Rural Population, 1800 to 1920, where the x axis is the year and the y axis is the population in millions. 2 lines are shown, labeled urban and rural. Urban: 1 in 1800, 2 in 1820, 2.5 in 1840, 5 in 1860, 13 in 1880, 40 in 1900, 55 in 1920. Rural: 5 in 1800, 9 in 1820, 15 in 1840, 25 in 1860, 35 in 1880, 45 in 1900, 50 in 1920. According to the graph, which of the following is true?
a.
Rural population was increasing at a greater rate than urban population.
b.
Between 1900 and 1920, the total population declined.
c.
Between 1900 and 1920, urban population increased at a greater rate than rural population.
d.
Urban population grew more quickly before the Civil War.

Please select the best answer from the choices provided

A
B
C
D