They used telegraph lines
The Marbury vs<span>. </span>Madison<span> decision of 1803 set the precedent that the </span>court<span> could nullify an act of Congress if it was found to be inconsistent with the Constitution. This ruling formed the basis of judicial review and established the separation of the executive and judicial branches. hope this helps</span>
C is the answer
and it is the only one that makes scence
South of Egypt I think I just looked at the map