Answer:
Positively self-selected for migration
Step-by-step explanation:
Positively self-selected for migration means that the people who are migrating have a higher level of skill set as compared to the job market of the destination country. Also, the income level and salary levels are also better in the destination country in comparison to the home country. This makes the immigrants believe that they will be well-off in the destination country. Hence, they have a high desire to migrate and make the choice to do so as they are precisely the kind of people who are most disposed to do well in their new country because of the better skill level and the economic benefits. Hence, the right sociological term for this is positively self-selected for migration.