How did the United States respond to the Soviet blockade of Berlin?

(1 point)
Responses

The United States airlifted materials into Berlin.
The United States airlifted materials into Berlin.

The United States declared war on the Soviet Union.
The United States declared war on the Soviet Union.

The United States cut off diplomatic relations with the Soviet Union.
The United States cut off diplomatic relations with the Soviet Union.

The United States sent troops and airplanes to rescue the people in Berlin.

The United States airlifted materials into Berlin.