Which conclusion does this excerpt most clearly support?
Hon. William Williams, Commissioner at New York, says in
his report: "[The present laws) do not reach a large body of
immigrants who, while not of this class, are yet generally
undesirable, because unintelligent, of low vitality, of poor
physique, able to perform only the cheapest kind of
manual labor, desirous of locating almost exclusively in the
cities, by their competition tending to reduce the standard
of living of the American wageworker, and unfitted
mentally or morally for good citizenship. ... Their coming
has been benefit chiefly, if not only, to the transportation
companies which brought them here."

Immigrants restrictions of the time are not enough because they do not apply to all immigrants.
Immigrants are considered undesirable because according to the author they "reduce the standard of living of the American wageworker".
The increase of immigrants is related to transportation companies.

What is Nativism?

Nativism is a belief and political position that proposes native people from a country or natural citizens should be favored over immigrants. This idea often implies a rejection of immigration or considering immigrants negatively affect natural citizens.

This belief can be seen in the excerpt presented because there is a clear rejection towards immigrants as the author describes him negatively as:

unintelligent, of low vitality, of poor physique, able to perform only the cheapest kind ofmanual labor".

Note: This question is incomplete because the options are not given; here are the options:

A. Nativist sentiment was on the rise at the turn of the century.

B. Immigration restrictions in the early 20th century induced job

growth.

C. Americanization efforts among immigrants in the late 1800s

quelled discontent.

D. Industrialization spurred demand for immigration in the late 19th century.

Learn more about immigrants in: https://brainly.com/question/1289110