United States History Question of the Day

Checkpoint Charlie divided East and West Berlin
(Source:Wikimedia
Commons--public
domain)
Question 0100119:
When the Soviets and East Germans blockaded highway, river,
and rail traffic into Berlin in 1948, the United States
(A) initiated the Marshall Plan
(B) built the Berlin Wall
(C) airlifted supplies into West
Berlin
(D) allowed for Soviet control of
Hungary in exchange for a promise of lifting the blockade
(E) refused to act