Pretty sure it’s C hghhhkdkdjdjd
The rail roads were the key of success to cattle ranchers because now they could load them on a train car and get them to the meat processers in half the tome and with less money therefore making more profit.
The US assisted in war to protect its citizens and businesses in Cuba... hope this correct
Exposed them to new lands to conquer as well as spread influence too. It allowed competing countries to appear superior if they conquered land in the land. Land=resources and power all equate to more economic oppurtunities
