Foreign-Born Population in the United States, 1850-1870 Foreign-Born Population Percent of Total Year (millions) Population 1850 2.2 9.7% 1860 4.1 13.2% 1870 5.6 14.4% Source: U. S. Census Bureau One result of the trend shown in this table was the O A. expansion of available labor O B. creation of specialized trade guilds O C. decrease in educational opportunities for women OD. increase in production costs for manufacturers