the answer is A trust me I'm in the same unit
Spatial Diffusion. The spread of Islam was accomplished through trade and conquest. Mecca was a center of trade. When camel caravans left Mecca, they carried Muhammad's teachings with them.
Answer:
B. They forced Germany to fight along both the Eastern and Western fronts.
Explanation:
In World War One Russia's purpose was to protect Serbia. Another explanation entering the war was that, along with France and Britain, it was a part of the triple alliance and had to assist them in the war. And therefore the while France and Britain were fighting from the eastern front, Russia fought from the western front, forcing Germany to fight both along the Eastern and Western fronts.
I think and hope that this is the right answer to your question: The Atlantic slave trade WAS 1 OF THE MOST important examples of a forced human migration in history. While in the U.S. slavery was well-documented, so ONLY 10 % of the slaves that were imported from Africa came to the United States. The other 90 % were disbursed throughout the Americas. Nearly HALF went to Brazil alone.
Please don't judge if wrong I'm from Havana Cuba so I dun't now much.