Why did many Progressives advocate restricting immigration to the United States?
A) They believed immigrant-dominated big cities to be center of social problems; therefore, the immigrants should be restricted
B) They believed that urban planners had to be given time to clear the slums and redesign the boulevards so that immigrants would see America at its best.
C) They believed that it was cruel to allow immigrants to come to America if they were going to have to work in unhealthy factories.
D) They believed that until the U.S. economy had been reformed, it could never expand rapidly enough to incorporate waves of immigrants.
E) They feared that immigrants would support labor unions and thereby reduce the influence of individual Progressive organizations.
