The option that could be included in a list of negative impacts of emigration on the country of origin is:
brain drain
Brain drain refers to the emigration of highly skilled or educated individuals from one country to another, which can lead to a loss of talent and expertise in the country of origin, negatively impacting its development and economic growth.
The other options, such as increased GDP and remittances, are generally considered positive impacts, while population increase does not directly relate to the negative effects of emigration.