Answer: I think it is B. Levees held back the annual floods of the Tigris and Euphrates Rivers.
Explanation:
Answer: C. Serbs would not have tried to eliminate other groups
Explanation: Just finished the test got 100%
In 1828, a teen aged Abraham Lincoln guided a flatboat down the Mississippi River to New Orleans. The adventure marked his first visit to a major city and exposed him to the nation's largest slave marketplace.