Answer:
Polk wanted California and its magnificent San Francisco Bay as the American gateway to trade with China and other Asian nations. Polk was worried that other nations, such as England or France, might take California if the United States did not act.
Explanation:
B. The entrance way (sorry if I am wrong)
Answer:
The American System i think
Explanation:
an Economic program advance by henry clay ,, that included supports for a national bank, high tariffs, and internal improvements; emphasized strong role for federal government in the economy.
They relied heavily on trade
