It’s not C. I’m unsure as well, but I think the answer is B, after all, only a few countries wanted slaves for labor. The rest needed goods and supplies, etc. I hope it helped :3
The answer would be C. Constantinople
Answer:
B. "The improvements in productivity in early agricultural societies enabled more complex societies to develop" is the best option.
Explanation:
This improvement in productivity mostly came from the division of labor, which allowed people to do things other than farm.