Which of the following was a way Progressive reformers responded to immigration trends?

O Philanthropy emerged as a means to resolve the
social problems stemming from immigration.
O Immigrant schools were created as a way to resolve
the nation's challenges over immigration.
O Exclusionary acts and quotas were enacted to try to
resolve issues resulting from immigration.
O Unionization emerged as a labor system to improve
the lives of the many urban immigrants living in
poverty.