Which action by US immigration officials most likely led to an increase of migrants?

Allowing people from certain Latin American countries to migrate for family reunification would most directly increase the number of migrants entering the United States. It creates a pathway for relatives to join family members already living in the country. The other choices concern renewing work permits, work permits for people brought to the US as children, or citizenship for adopted children, rather than expanding migration through family reunification.

AI-written and checked against the verified answer.