Austro-Hungarian Empire
The Austro-Hungarian Empire collapsed after World War I, and the subsequent Treaty of Trianon established Hungary's current borders, resulting in the loss of 71% of its territory, 58% of its population, and 32% of ethnic Hungarians.
Answer:
what you do is look it up because your on a laptop or phone instead of asking somebody that will probably get it wrong for you ;)
Explanation:l
Your answer will be definitely A. cultural diffusion <span />