<span>"Improved land and water transportation allowed the U.S. to develop more industry and create a cash crop agricultural system." is the choice you're looking for. </span>
In battleground states, they will be more competitive. therefore, people of both parties will feel inclined to run and parties will put more money into flipping them or winning campaigns to show their strength.
Answer:
The people should change it or overthrow it.
Louisiana Purchase - Jefferson
Alaska - Seward
Northwest Boundary - Poll
Red Cross - Barton
Airplane - Wright Brothers
Polio vaccine - Salk
