The correct answer would be option D, How has the law affected immigration in the United States.
Jamie is writing a research paper on whether to revise the immigration and Nationality Act of 1965. The above mentioned question would be the best example of an effective research question.
Explanation:
When there is a research being conducted, it should cover all the effects, advantages or disadvantages or impacts, the research topic had on a particular area.
When a research like whether to change the immigration and Nationality Act of 1965 is being conducted, the question should be to see how the law has affected the immigration in United States. This question will tell the researcher about the need of any changing in the Act or not.
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The school psychologist visits the class one day to observe
Water, carbon dioxide, and sulfur dioxide
