How did the gold rush speed up the process of manifest destiny

The Gold Rush caused an increase in population because many people ran at the chance to make a fortune in California. California was on the coast of the Pacific however, which meant you had to travel the land in between first. If people did not make money from gold, the often settled in California anyway. This helped bring more people over and eventually help the goal of Manifest Destiny, which was to settle all the land from the Atlantic to the Pacific.

The answer is d.  the north had organized schools, whereas the south had few organized schools.