Evan, a social advocate, remarks that there has been a perceptible decrease in the unauthorized immigrant population since 2007.Which of the following could be a reason for this?

Question

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The doubling of deportations could be a possible reason for the decrease in the unauthorized immigrant population as it creates a deterrent effect and makes it more difficult for undocumented immigrants to enter or stay in the country. The other options may not have had a significant impact on the population decrease or could be debated. For example, while job opportunities may be a factor, there is no conclusive evidence that it alone led to a decrease in the unauthorized immigrant population. The passage of laws that aim to protect undocumented immigrants may actually attract more immigrants to enter illegally due to perceived legal protection. Inefficient border management could also be a factor, but this alone may not have caused a perceptible decrease in the unauthorized immigrant population as the causes of immigration are multifaceted.

Evan, a Social Advocate, Remarks That There Has Been a Perceptible