The best answer is:
Samuel Morse and the telegraph
Robert Fulton and the steamboat
<span>Cyrus McCormick (Inventor of the Mechanical Reaper) so its improved because he invented a better one than ones already invented
</span>hope this helped :)
The correct answer is D, as the indigenous American civilization that lived near the Andes was the Inca.
The Inca civilization was a pre-Columbian civilization of the Andean group. It began at the beginning of the 13th century in the Cusco basin in what is now Peru and then developed along the Pacific Ocean and the Andes, covering the western part of South America. At its peak, it extended from Colombia to Argentina and Chile, beyond Ecuador, Peru and Bolivia.
Central Europe.its in the name
