Which of these measures was specifically designed to limit the voting rights of the black freedmen? the Fifteenth Amendment grandfather clauses the removal of federal troops from the South Jim Crow laws

Grandfather's Clause

observing traffic laws in exchange for driving on the highway.

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.