The correct answer is:
C. Olmec
The Olmec civilization used to create stone representations of human heads sculpted from large basalt boulders, these are called " Olmec colossal heads". The heads date from at least 900 BC and are a distinctive feature of the Olmec civilization of ancient Mesoamerica.
to serve their country? to have money? this is a blanket question i can try to answer it if you give me more detail.
Vicksburg was the last stronghold until the Union could have the Mississippi River. If they were to take Vicksburg, they would split the Confederacy and go along with their Anaconda Plan. They did so by starving Vicksburg to surrender.
