The correct answer should be D. an urban unit with clear boundaries and a degree of autonomy
A has to be a town, even though the definitions of the two are almost the same. B is not it because a city can be an industrial center, not a cultural one. C is not it because natural geographic boundaries are not necessary.
Answer:
The reason they built the pyramids next to the Nile River was so it would be easier to get the blocks to the pyramid. The stones could be bought nearer to the pyramid building site by boat.
Explanation:
A ik its going to be A cause i just took the test
