This is a mastery test? Sorry can't help, It is against the rules...:(
Progressives sought to break the power of political bosses by reforming the election process. They used direct primary to take the power of choosing candidates away from political machines. Then they pushed for the 17th amendment to give voters the power to elect their senators directly. Finally, progressives urged states to adopt initiative, referendum, and recall.
Democratic party is what your looking for
A is the answer.
European population grew in settlements, while they killed the nearby Native Americans. Africans were taken as slaves and sent to America.