Answer:
Option D is the right answer.
Step-by-step explanation:
It all started with Louisiana Purchase. French King Louis had surrendered to America and seceded Louisiana which became the largest expanse of land that came under control
Manifest destiny was a conviction which the Americans strongly believed that God, the supreme power desired the glory of America by expanding its territories in westward. America also intended to reform the west as it was a mere large expanse of land that needs to be cultivated and used well in order to reap profits.
United States histrionically grew in dimension and large land grants were sanctioned by the Us Government to its people to construct factories for its economic prosperity.