Why Did Neither the Members of Congress nor the Roosevelt

Why did neither the members of Congress nor the Roosevelt administration push to revise the restrictive National Origins Act of 1924?

A) Anti-foreign sentiment still lingered in the population.
B) They did not want to spoil successful economic recovery.
C) Because of the world depression, there were no immigrants to whom it applied.
D) It was immigrant groups themselves that lobbied Congress to "keep the door shut."