Final answer:
Leon should plan the outline in greater detail to best revise this section. To best revise this section of his outline, Leon should choose option B: He can plan the outline in greater detail.
Step-by-step explanation:
By planning the outline in greater detail, Leon can ensure that he has a clear and logical structure for his report. This will help him organize his thoughts and ideas more effectively, making it easier for him to develop his points and arguments.
Additionally, planning the outline in greater detail will also allow Leon to identify any gaps or areas that require further research, enabling him to gather the necessary information before proceeding with the writing process.