Which statement helps distinguish between a memoir and a documentary?

A memoir requires the audience to use imagination.
A documentary provides details that support the story.
A memoir is nonfiction, and a documentary is fiction.
A memoir communicates a message to an audience.

Something about the signs made me curious, and I ended up back on the same side street the next day.

Which portion of the excerpt provides a text clue about the story’s context?

I was sixteen with no car, so I walked all over Chicago . . .
I walked all around the neighborhoods . . .
. . . the signs made me curious, and I ended up back on the same side street . . .
One read "The Dream Theater" . . .