Answer:
C)The United States sought to expand its borders into Spanish territories.
Step-by-step explanation:
"America for americans", or the Monroe Doctrine was the statement by the president Jason Monroe, that said that the United States would see as a direct attack on our safety and independence the interference of any European power on the affairs of free territories on the American continent soil and will oppose any country that would try to expand their current existant colonies, this basically meant that the US governmet would take matter in protecting American territories from being conquered and colonized by European powers.