Answer:
a. internal conflict among native African groups was intensified.
Explanation:
European expansion into Africa, from the activities of the explorers, through the era of slave trade until the period of colonial occupation intensified conflict among native Africans.
This internal conflict was more pronounced during the slave trade when African rulers will need to war against neighbouring villages in order to capture them as slaves to be sold to the European traders in exchange for foreign commodities.
Because of imperialism, countries now had access to colonies. When the war started, they were able to equip their colonies to fight for their side. This led to higher tensions and increased involvement in the war.
1. Protest that turned into armed conflict
