Answer:
A decision about which point of view to use
Step-by-step explanation:
What Ramona left out of her planning is a decision about which point of view she is going to use. She included the rest of the elements.
In literature, the point of view is the perspective from which a story is told. For example, Ramona's story can be told from the first-person or third-person point of view. We could view the story through Ramona's eyes (first-person), or we could watch Ramona and other characters interact from the side as if we were spectators (third-person). However, we don't know which perspective she will choose.