"War of the Worlds" is an episode of the American anthology of Mercury Theater on the Air, directed and narrated by actor and later director Orson Welles. The episode was broadcast live on Halloween, and became known for causing panic among the listeners, but the scale of that panic was questionable because this episode did not have much listener. Either way, Welles ended the episode by telling the listeners that the story was not real.
The answer is: D.