Mexico is the largest source nation, providing about 4 percent of the U.S. population, followed by India, China and the Philippines. India contributes less than a quarter of the share that Mexico contributes.
The qeustion is asking what country has the most immigrants.
According to the United Nations, in 2019, the United States, Germany, and Saudi Arabia had the largest number of immigrants of any country, while Tuvalu, Saint Helena, and Tokelau had the lowest.
