The migration transition model predicts that high international emigration and interregional rural-to-urban migration reaches a peak at of the demographic transition.

B. stage 2

Explanation:

The "Demographic Transition" is a model illustrates the  population change over a given period of time. The migration transition model predicts that high international emigration and interregional rural-to-urban migration reaches a peak at stage 2 of the demographic transition. During which there is a large increase in emigration which begins to slow down in stage 3 , thus indicating that a peak has been reached.

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would it be plagiarism to copy and paste off of here? ?