Answer:
C.casual observer who has the authority to tell the story
Step-by-step explanation:
"A Girl From Tamhill" is a book by Beverly Cleary, that narrates her memoires, she speaks about her life in Yamhill, Oregon a little town in america, to then move into Portland, she as an only child narrates the livings and events that happened in her life, from the school to the interactions with her peers.