Answer:
Austria
Explanation:
Crown prince and princess of Austria were killed by Black Hand Society of Serbia.
<span>The correct answer is D) Immigration was huge during the gilded age. What is the Gilded age? It's from the history of the United States, and it's a period from the late 19th century, from the 1870s to about 1900. The term that the period got came into use in the 1920s and 1930s.</span>
<span>Conquests gave empires more room to expand their cultures and peoples. It gave them more land to explore and more resources to find, which could then be used to fund future expeditions and conquests. The cycle continued as more land was picked up, more people were subjugated, and more resources were procured.</span>
Since you provide no options, That could be considered an economic Benefit. Using require materials will lead to using less money for the expenditure, which later on could be allocated to fund a more important/pressing matter such as welfare.
hope this helps