Analyze the map below and answer the questions that follow. A satellite image of Africa with 4 regions circled labeled A, B, C, and D. A is near Spain and Portugal. B around the middle of Africa. C is near Egypt. D is around the Saudi Arabian peninsula.
Image courtesy of NASA

On the map above, what landform is located at oval C?
A.
the Sahel
B.
the Sahara Desert
C.
the Nile River Valley
D.
the Atlas Mountains