I think the author chose to start the book 19 years before the main events of the story so the reader could absorb things. The author technically wanted the reader(s) to understand something before reading the real story.
This was an event in Vonnegut's own life, and the novel is
considered semi-autobiographical. from his time as an American soldier and
chaplain's assistant, to post war and early years. It is generally recognized
as Vonnegut's most influential and popular work.
Answer:
Two, is the correct answer.
Explanation:
The memoir details the events that happened preceding the author witnessing the moon landing as a child, after being roused from sleep as a child. The dramatic tone the memoir takes as they announce the reason they were woken up hints at the author's purpose.