Apply the push-pull theory to human migration during the post feudal time period of Europe. HELP PLEASE PLEASE OMG PLS

Newfoundland and Labrador's permanent population rapidly expanded during the first half of the 19th century, largely due to an influx of English, Irish, and Scottish immigrants. Until then, the colony primarily served as a seasonal fishing station for European countries and most of its population remained on a temporary basis only. During the early 1800s, however, the migratory fishery gave way to a resident one as more and more immigrants arrived from overseas to live in coastal communities on the island or in southern Labrador.

Explanation:

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the answer wold be b) travel among nations should be regulated by an international organization

i see, would you mind putting it as one?