Hey There!
These lines cross Angola. So, the answer is Angola.
A cataract is an area of a river where the elevation of the streambed changes too quickly or has to many boulders meaning people couldn't use part of the river as transportation.
This was a good thing because the cataracts effectively served as barriers so they could control travel. This meant that the Pharos found it impossible to control the land south of the first cataract. This ending up becoming the southern border of Ancient Egypt.
Hope this helped ☺️
<span>A. Ocean currents, is the only logical answer this question I mean come on I know for a fact I'm correct</span>
New Orleans, Louisiana.
If you look at a map and insert these coordinates, New Orleans is the city located at 30n 89w.
Hope this helps!