During the Period Known as the Informal Empire, What Was

During the period known as the Informal Empire, what was the level of the Europeans' involvement in Africa?

A) The Europeans settled only the Mediterranean coast.
B) The Europeans remained only in coastal areas.
C) They eagerly sought the interior of Africa as a colonial interest.
D) They fought many wars for control with Arab Muslims.
E) The Europeans settled only the Cape Town area of South Africa.