To what event is this passage most likely a response? The acknowledgment that both the United States and Soviet Union have atomic weapons.

The acknowledgment that both the United States and Soviet Union have atomic weapons.

The launching of Sputnik I by the Soviet Union.

The launching of Sputnik I by the Soviet Union.

The number of air raids on Dresden, Tokyo, and London during World War II.

The number of air raids on Dresden, Tokyo, and London during World War II.

The rise of the civil rights movement after World War II.