The claim that is best supported by the evidence in these charts is that the Immigration to the U.S. provided a steady source of laborers for a rapidly growing manufacturing sector.
The chart indicated that Immigration increased every year and peaked at the last year on the chart.
Also, the chart shows that manufacturing growth increased as the immigrant increases in the country.
Hence, the chart indicated that the Immigration to the U.S. provided a steady source of laborers for a rapidly growing manufacturing sector.
Therefore, the Option D is correct.
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