Final answer:
European countries prioritized building infrastructure to extract and export resources from Africa during colonization in the late 1800's.
Step-by-step explanation:
The main priority for the European countries that colonized Africa in the late 1800's was D. Building infrastructure to get resources and to then export the resources. European powers sought to exploit the vast natural resources found in Africa, such as minerals, rubber, and agricultural products. To facilitate the extraction and exportation of these resources, they invested in building railways, roads, ports, and other types of infrastructure.
Learn more about European colonization of Africa