Which conclusion can be drawn from this graph?
a. the total population of the united states in 1910 was about 7,000,000 people.
b. about 1,615,000 people living in the united states in 1910 were born in ireland.
c. in 1910, more people living in the united states were born in great britain than in any other country.
d. in 1910, more people living in the united states were born in sweden than in canada.