Final answer:
Cultural diffusion through conquest occurs when a country imposes its culture on another after defeating it in war. The best answer to the provided schoolwork question is A. conquest.
Step-by-step explanation:
When culture spreads because one country has defeated another in war, this is called cultural diffusion through conquest. The correct answer to the question is A. conquest.
Conquest refers to the act or process of conquering, and it is a historical method through which cultures have spread. This occurs when a victorious country imposes its cultural practices, beliefs, and systems upon the defeated country. The spread of culture through conquest often alters or outright replaces the existing culture of the subdued population.
Throughout history, various empires and states have expanded their territory and influence through conquest, leading to widespread cultural changes. An example of this is the expansion of European powers and their colonization of various regions, which significantly impacted local cultures.