Answer choice b is correct
The deed Scott v stand Ford case established that those who were black did not have the right to citizenship regardless of if they were free or enslaved. It also had an opinion which stated that the Missouri compromise was unconstitutional.
Between 1870 and 1900, the largest number of immigrants continued to come from northern and western Europe including Great Britain, Ireland, and Scandinavia. But "new" immigrants from southern and eastern Europe were becoming one of the most important forces in American life. More controversial, and much more limited, was immigration from Asia and Latin America.
Analyzing data collected by others.