Answer:
A. Serbia,
Why: It achieved independence in 1867.
I think the answer is D.Sparta had two kings
Food (including seafood and game), crops, wild foods, and spices.
raw materials (including lumber, skins, fuel wood, organic matter, fodder, and fertilizer)
genetic resources (including crop improvement genes, and health care)
water purity.
biogenic minerals.
In Western Europe, the war was largely a stalemate as a result of extensive trench warfare that gave the defenders a massive advantage during battles. In Russia, however, the monarchy was overthrown by rebels, who then negotiated peace and surrendered large chunks of land to the Germans, allowing them to concentrate all their troops and resources to the Western Front.