The figures are from a report of the Togo colonial government to the Ministry of Colonies in Paris. The expenditures shown in the table most strongly illustrate which of the following?

A. Despite some medical advances, the environment in Africa continued to present unique challenges to European imperialism.

B. Despite economic challenges they faced at home, European imperial powers continued to finance local manufacturing in their colonies.

C. European colonial powers did not build roads, bridges, or railways in the African territories under their control.

D. The primary objective of European imperialism in Africa was to stop the rule of private joint-stock companies.