The Berlin tunnel did not alter the course of the Cold War, despite the efforts of the Soviet propaganda frenzy. In 1961, the Soviets built the Berlin Wall, separating East Berlin from West Berlin. The wall, and the Cold War, lasted nearly thirty more years, until 1989. On November 9, after a peaceful demonstration against the totalitarian government, East Germans began tearing down the wall. Unlike in the past, however, the Soviets did not intervene with force. Mikhail Gorbachev, the reform-minded head of the USSR, decided that the problem of reuniting Germany was best left to the German people.

–The Dark Game,
Paul Janeczko

Which statement best describes the change of tone in the final paragraph?

The tone is more admiring as the author confirms that the Berlin tunnel was the most important part of the Cold War.
The tone is frightened as the author begins to share details of the Cold War that followed.
The tone is more reflective as the author connects the Berlin tunnel to the Cold War that followed.
The tone is humorous as the author connects the Berlin tunnel to a “propaganda frenzy.”