The correct answer is D) establishment of restrictive immigration quotas.
Clancy's remarks were directed at the establishment of restrictive immigration quotas.
We are talking about Michigan legislator Robert H. Clancy, who, on April 8, 1924, denounced that immigration quotas were not the kind of legislation US Congress had to pass. He considered that legislation "un-American."
As the Republican he was, Congressman Clancy defended Jewish, Italian, and Polish immigrants stating that they were Americans too. He attacked this bill, saying that it was discriminatory and racist.