Well you can rule out communism since that is not an economic system but a system of government. Socialism is the answer you are looking for. Socialism involves the division of everything into equal parts. No economic classes is a major trait of Socialism.
If the movie is perhaps a documentary, then it is telling you factual information of actual events (includes pictures or pictures of actual documents or events); this makes it a primary source.
If the movie is based off of real events, has factual information, but also has added information to create a well-rounded plot, this makes it a secondary source.
Answer:
they were primary labor source for plantations in the chesapeake by 1630
The main subject of the writings of Alexander Solzhenitsyn was "<span>a. prison camps and human rights in the Soviet Union," since the Soviets famously imprisoned and killed hundreds of thousands of Russians. </span>