The correct answer is D) They did not want to use military force against the USSR.
The statement that best describes the reason why the Allies responded to the Berlin blockade by airlifting supplies to the city is "They did not want to use military force against the USSR."
In 1948, Soviet leader Joseph Stalin wanted to stop any international aid to West Germany, so he decided to block all entrances because England, the United States, and France were decided to send supplies to West Germany. So the three countries opted for the best option to avoid another armed confrontation: send the supplies by air. So that is how the sned supplies for almost one year until Stalin decided to end the blockade on May 12, 1949.