How did the berlin blockade impact the cold war?

a- it stopped the reunification of germany under pro-american government.
b- it allowed the soviet union to retain control over most of eastern europe.
c- it convinced the united states that it must stand firm against communist expansion.
d- it prevented the soviet union from placing missiles within striking range of western europe.

The answer is  C. It convinced the United States that it must stand firm against communist expansion.

Explanation:

The Berlin Blockade was ordered by Soviet paramount leader Joseph Stalin. He wanted to block the formation of a Western German state. The US rushed to provide an air lift, showing the USSR the economic power of the United States and its firm stand. The Russian action failed, because the pro-Western Federal Republic of Germany was created in 1949.

C is correct.

Explanation: During the WW II USA and its western allies believed in totally peaceful resolution of the war. But what was lurking behind all that was a much more profound ideological conflict between capitalism/parliamentary liberal democracy and communism/so-called popular democracy, confllict which existed also after 1945. This division became evident during post-war years (1945-1948) when communist coups took place in Eastern Europe. Blockage confirmed warnings of George Kennan ...USSR as an expansionist communist regime and necessity of much firmer attitude of the West

the picture is not clear

explanation:

i belive the classic sword and a shield would do