The answer is A since the other three are all true.
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. When Russia began to mobilize due to its alliance with Serbia, Germany declared war on Russia.
Answer:
Under capitalism, a country had to export more than it imported. Under mercantilism, a country could import more than it exported.
The important result of Justinian's reign in the sixth-century Western world was the brief re-unification of Eastern and Western empires.
The emperor Justinian ruled the Eastern Roman or Byzantine Empire from 527 until 565. He was known for many things like his efforts to regain the lost provinces of the Western Roman Empire and his codification of Roman law. He was also known for his architectural achievements.
