A. 20 is what i know and what i found online hope its right.
Answer: Republic
Explanation: The Roman tribes were long under the rule of Etruscan, so that when they overthrew the Etruscan power, they founded Rome sometime in 753 BCE. After that, Rome was ruled by kings, until the last king was thrown out of the throne and the Roman Republic was established in 509 BCE. Such a Roman Republic represented all citizens, and this right of citizenship could only be realized by the successors of the Roman tribes.
The most active period of the Trans Atlantic slave trade was during the period between the years 1501 to 1867. The Atlantic slave trade or Trans Atlantic Slave Trade became very popular between the 15th and the 19th century. Most of the slaves were captured and taken to the New World. The transport of slave trade took place via the Triangular Trade route.
Besides geography, the major issue that would have made this impossible is that each "country" or state in South America was dominated by a different ruler, many of whom had fought of the Spanish--meaning that they would have never united under one title. Their cultures were also wildly different.