The factor that contributed considerably to the changes shown in the table, would be, indeed, The increase in the birthrate.
What is the population?
The population exists as the number of individuals or animals in a particular place.
The reason for this existing the correct response is that the table shows the metamorphosis in a numeral of examples from the House of Representatives throughout the years 1960, 1970, and 1980 from the different states: Colorado, New York, Pennsylvania, and Texas. This growth in numbers directly correlates to the growth in residents numbers for separately of these states, given that in the House, the number of instances will depend on the population count.
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