American ———————-/////————————
The correct answer for the question that is being presented above is this one: "(D) The United States government entered into a "gentleman's agreement" to ban immigration from certain countries." The statement that is true about immigration to the United States during the last two decades of the nineteenth century is that <span>The United States government entered into a "gentleman's agreement" to ban immigration from certain countries.</span>
He stated that United States should provide support to free people who are continuously resisting and showing oppressiveness against outside pressure or armed minorities.
<u>Explanation:</u>
President Harry S Truman provided 18 minute speech before joint session of congress on 12th March 1947.
Truman stated that U.S. should provide all aids (financial/political/military) to nations which are under threat from internal or external forces. Truman Doctrine marked change in U.S. international policy to containment from isolationism. As an immediate effect in 1947, his effort helped Greek and Turkish to fight against communist.
