Four-year-old Rosemary picks up a picture book and pretends to read it to one of her preschool classmates. "Once upon a time," she says, "there was a fairy princess. She was very beautiful. A handsome prince asked her to marry him. They lived happily ever after. The end." Which one of the following is the most reasonable interpretation of Rosemary's behavior?(A) She has acquired a story schema for fairytales.(B) She has a good working sight vocabulary.(C) She is engaging in knowledge transforming.(D) Her lack of attention to the words on the page suggests possible dyslexia.