Answer:
Option: B. Large numbers of colonists resettled in Africa for its available farmland.
Step-by-step explanation:
After the decline of the Atlantic Slave trade in the 19th century, European began to focus on Africa for its raw materials to run their industries. The arrival of European nations in Africa led to imperialism through military invasions which led to conquest and colonization. The European began to establish colonies in Africa in 1870. European came to Africa for its resources like ivory, cotton, palm kernel, palm oil, rubber, and groundnut not for resettled for farmland.