Answer:
The first World War began in 1914 with the assassination of Archduke Franz Ferdinand and involved Germany, Austria-Hungary, Great Britain, Russia and the United States among others. During World War I, the civilian population of Great Britain was greatly affected through Zeppelin bombing raids and Gotha bombings in London. In Germany nearly 800,000 people died due to starvation or starvation-caused disease as a result of the British blockade. Furthermore, the Armenian genocide occurred during World War I, in which Armenian citizens were killed and deported by the Turks.
As a result of the ugly nature of the war and its global scope, citizens began seeking more radical solutions within politics. Bolshevism, Fascism and National Socialism developed in Europe, and citizens within the United States retreated to an isolationist mindset as a result of the war. World War I greatly impacted the status of nations around the globe, and nations such as France and Russia were demoralized through the spread of German propaganda.
Explanation:
D. a golden age of stability and advancements
These countries differ in many ways: linguistically speaking, Poland an Serbia, which are slavic, do not share the same origins with Hungary, which is not an Indo-European language. Secondly, Poland and Hungary are countries which did not separate themselves, nor socially, nor geographically after 1989 when communism ceased to exist as Serbia used to belong to a bigger country, Yugoslavia, in the past.
I think it is B but not 100% sure
