She smiles a little , but she can still feel Sora 's heart writhing in hatred and rage for that woman . " Please do n't worry , Sora ... until we learn what 's happened in the past 6 months , we 'll always wonder , but you ca n't dwell on it ... you ca n't let things like that get to you . She 's not worth your time and energy , Sora , just forget about her ...

Question: Why is someone telling Sora not to dwell on something ?
Answer: Because Sora just needs to forget about people .None of the above choices .Because it only does harm to herself and does n't do any good .Because they have n't yet learned what 's happened in the past 6 months .