Which of the following statements about immigration to the united states is most accurate?
a. all immigrants have easily assimilated into american society.
b. the ethnic mix of the american population has remained unchanged.
c. the number of immigrants entering the country has varied over time.
d. most immigrants come to the united states from canada.

I feel like this could be an opinionated question when choosing A and C. But, I would say for test purposes, C. I would say it has changed and varied because of different presidents, such as now with Donald Trump and before with Obama.

I hope this helps you :)

c. The number of immigrants entering the country has varied over time.

Explanation:

Migration to the United States is the worldwide development of non-U.S. nationals so as to live for all time in the country. Lawful migration has been a noteworthy wellspring of populace development and social change all through a great part of the U.S. history.

Since the United States is a pioneer pilgrim society, all Americans, except for the little percent of Native Americans, can follow their parentage to workers from different countries around the globe.

uniform, random, and clumped.

explanation:

mark brainliest if this : )