Northerners in America, due to the new rulings of Henry Clay's Compromise of 1850, were required by law to abide strictly by the Fugitive Slave Law and report any runaway slaves they encountered to the proper authorities. This was especially stressing to the many abolitionists in the region.
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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.
Answer: Stalin wanted a buffer zone of friendly Communist countries so they could protect USSR from any further attacks in the future.
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