Lower Egypt is located in the northern part of Egypt
and is down
A. river
B. wind
C. in population
D. in supplies

Ancient Egypt was divided into two regions, namely Upper Egypt and Lower Egypt. To the north was Lower Egypt, where the Nile stretched out with its several branches to form the Nile Delta. To the south was Upper Egypt, stretching to Aswan.

it seems to be C because Aswan is a city etc

c people in 46 occupations