He sent General Zachary Taylor to claim an area of disputed land for the United States and this step of President Polk resulted in the war between the United States and Mexico. The correct option among all the options given in the question is the last or the fourth option.
The main target behind making California a part of the
United States was the San Francisco Bay. Mexico did not like the way United
States was trying to acquire California as the Mexicans thought it to be a part
of their country.
Maybe she needed more or new things <span />
The south required slaves because of their farming and cotton industries. Where the North was more industrial, so they didn't need slaves as much.
The government wanted to prevent slavery form going to the wast ward states but the south wanted to extend slavery over to the west.
