Most of the major cities pictured in the map are located where they are because of which of the following? (10 point)
a
The trading caravans used the Nile to travel to markets in Lake Nasser.
b
Water features make mining easier than farming.
c
The only source of water in the country is along the Nile River.
d
The flooding of the Nile River deposited silt that made good farmland.
