Answer:
Part A: Anne believes that her journal is less judgmental than a human confidant.
Part B: "It's an odd idea for someone like me to keep a diary; not only because I have never done so before, but because it seems to me that neither I—nor anyone else—will be interested in the unbosomings of a thirteen-year-old schoolgirl."
I took the quiz on k12 this is the answer :)