Final answer:
European imperialism persisted after World War I, notably when France and Great Britain gained control over former German colonies, a clear demonstration of imperial extension.
Step-by-step explanation:
European imperialism was still evident after World War I in several ways. Among the given options, the most direct evidence of continued European control over territories is encapsulated in option C: France and Great Britain took over former German colonies. After the war, Germany's overseas territories were seized and redistributed among the victorious allies. The Treaty of Versailles resulted in these territories being governed by the League of Nations mandates system, which was often administered by French and British powers. This move exemplified how the spoils of war led to the extension of British and French imperial control, as they took over lands in Africa, the Pacific, and Asia that had previously belonged to Germany. This was another iteration of colonial expansion, falling into the broader narrative of European powers establishing or maintaining their control over non-European regions.