How did the United States and Great Britain prevent starvation in a democratic German city blockaded by the Soviets?

In 1948, the Soviet Union´s dictator Joseph Stalin ordered the blockade of West Berlin - made up by the three Western occupàtion zones -, angry because of the decision to allow a new German currency. The United States  and Britain started an airlift to supply the city and avoid shortages or famine. It lasted a year and made the Soviet plan to put pressure on the West fail.

Explanation:

just like you man, i personally think its either c or d

explanation:

but good luck with the test man

i believe the answer is d.