B) because construction on the U.S. transcontinental railroad began in the mid 19th century
Answer:
To protect the Island of Cuba.
Explanation:
The Soviets stated they sent missiles to Cuba to arm themselves and defend themselves against a possible attack. This would make sense as Cuba was communist nation, in which is still in a way is, and Soviet Russia would want to have a help a fellow communist country in order to help communism strive.
I believe that one of the main reasons was that the North had a more industrialized advantage. For example, the North had many factories and railroad systems which was scarce farther South where agriculture and farming dominated. Having these factories allowed manufacturing weapons and suplies much easier and quicker than than the South.
