What Was an Unintended Consequence of the Immigration Act of 1924

What was an unintended consequence of the Immigration Act of 1924 in the United States?

A) The Hispanic Catholic population substantially increased.
B) The number of immigrants who entered the country each year increased overall.
C) The number of immigrants from southern and eastern Europe dramatically increased.
D) The number of communicable diseases in the country rose drastically.
E) The number of Chinese immigrants dramatically increased.