Answer:
The answers is choice number 3
Explanation:
Use of ground troops: Americanization used US ground troops to fight the war whereas Vietnamization used S.Vietnamese ground troops to fight the war.
Johnson moved the US from an aid and financial backer to a ground force with men in active duty on the front lines in addition to naval and air support. Nixon's policy removed the ground troops, leaving the S. Vietnamese to fight that on their own (with our aid and money) but continued our air strikes and naval support.
None of these answers make sense but im going pick A because it can take long depending on the person if they dont get alot of money
The correct answer is that The United States would intervene in Latin American affairs in order to keep European countries out.
This was directed primarily at Spain.