In an influential 1947 article, diplomat George F. Kennan advocated that the US should: a. Invade the Soviet Union to establish a democracy
b. Adopt a more conciliatory policy toward the Soviet Union
c. Conduct covert activities in underdeveloped countries to undermine communist governments
d. Focus its foreign policy on containing the spread of Soviet communism

d. Focus its foreign policy on containing the spread of Soviet communism

Explanation:

In an influential 1947 article, diplomat George F. Kennan advocated that the US should: "Focus its foreign policy on containing the spread of Soviet communism."

In the article which was titled the "X-Article" and published in a journal named Foreign Affairs George F. Kennan described that "The main element of any United States policy toward the Soviet Union, must be that of a long-term, patient but firm and vigilant containment of Russian expansive tendencies.”

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.

b. martin luther king jr. wrote and spoke "i have a dream"

explanation:

i know this 100 percent is correct   b. is the best one. < 3