Answer:
increasing numbers of immigrants
Explanation:
The main reason that the proportion of Asians and Hispanics in Georgia has grown since the 1970s is due to "increasing numbers of immigrants."
The above statement is accurate because it was revealed that Georgia international immigrants between 1970 to 1990 are four times faster when compared with the whole country rate. Similarly, it was revealed that since 1990, the significant immigrants to Georgia are Mexico, Central America, and Asia, particularly India and Vietnam.
Hence, in this case, the correct answer is "increasing numbers of immigrants"
