B and D are the correct answers. The Agricultural Revolution in ancient civilisations began in Levant (modern-day West Bank), between 10,200 and 8,800 BC. Mesopotamia was not the origin of the revolution, although it was the site of early developments in the Neolithic Revolution around 10,000 BC.
Adolf Hitler Is originally Austrian
The answer is domestic system
<span>Harriet Tubman's primary role in the effort to abolish slavery was that he established the "Underground Railroad" (not an actual railroad), which helped slaves escape from the South to freedom. </span>
