Alfred Thayer Mahan recommended that the American military should focus on sea-power as the key to its success in any contemporary or future conflicts.
Answer:
a.education
Explanation:
I think this because if the world will be in our hands then we need our education. So that we aren't just called kids.
The answer is C! I hope this helped you.
B, because when Japan attacked China, China unified to fight a common enemy.
The transcontinental railroad transformed the west because it made the idea of manifest destiny so much easier to achieve. The railroads also gave access to many trade spots, which in result connected them all, making the economy of America BOOM.