Answer:
b
Step-by-step explanation:
The Soviet action during the early stages of the Cold War that BEST supports Kennan's argument in the excerpt is B) The Berlin Blockade. The Berlin Blockade, which took place from 1948 to 1949, was a Soviet attempt to cut off Western access to Berlin, a city located deep inside the Soviet-controlled territory of East Germany. This was a clear example of Soviet efforts to tear down sources of strength beyond the reach of Soviet control, and demonstrated the basic Soviet instinct that there can be no compromise with rival power. The other options listed, A) Krushchev's Secret Speech condemning Joseph Stalin in 1956, C) The Creation of the Warsaw Pact, and D) Soviet relations with Broz Tito and Yugoslavia during the early Cold War, do not directly support Kennan's argument in the excerpt.