Help! Read the excerpt from This Land Was Made for You and Me.

He turned down their offer of a bed, and fell asleep sprawled on the couch, or threw his lumber jacket over his shoulders and slept on the floor. Rather than eat at the table, he insisted on standing over the sink, saying, “I don’t want to get softened up. I’m a road man.”

Which part of this excerpt indicates that it is a biography?

a description of a setting
a realistic description of a character
a quotation from an authority
a quotation from the subject