D. Protect competition by preventing monopolies
The best option fro the list would be that "<span>A. Both eras were strongly influenced by civilization that became "superpowers," since during the Classical Era this was mostly Greece and Roma, while in the Modern era it would be the United States and Russia. </span>
The correct answer Is C, Harriet Tubman
Answer:
they can travel 1,600 miles so it would probably be c
So a railroad from Chicago to the West Coast could be built.
