Answer:
D ( Native Americans were susceptible to European diseases and many died)
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.
