The answer is C, OPEC.
It stands for Organization for Petroleum Exporting Countries.
The best and most correct answer among the choices provided by your question is the second choice or letter B
The Soviet Union greatly influenced Poland's and other Central Europe's government form which changed<span> from authoritarian political systems to more democratic ones.</span>
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The Confederate troops first fired at Fort Sumter in South Carolina. Less than 34 hours later, the union forces had to surrender to them. The reason this firing occurred, was over the debate on slavery. Sectionalism and secession also played part in beginning the civil war.
