Answer:
Option A, The First Boer War
Step-by-step explanation:
The First Boer War was caused by the global competition for natural resources in Africa, such as those described in the sources.
The first Boer War (October 11, 1899) began when Boer decided to restrict the entry of non-Boer settlers (Uitlanders) and to grant civil rights to Africa. The non Boer mainly comprised of Britishers.