Read the passage. Paragraph 1: (1) A pilot mentoring program pairs first-year employees with experienced staff from another department. (2) Mentors meet with participants twice a month to discuss workplace questions and long-term goals. (3) Unlike supervisors, mentors do not assign work or evaluate performance. (4) Several participants reported that this separation made it easier to ask questions they considered basic. (5) Others preferred to ask their direct supervisors about tasks that required immediate approval. (6) The pilot therefore treats mentoring as an additional source of guidance rather than a replacement for supervision. Paragraph 2: (7) The evaluation team will compare retention, participation, and survey responses after one year. (8) The final report will recommend whether the organization should expand the program. A reviewer suggests deleting sentence 5 because it describes a different source of guidance. Which editing choice best preserves Paragraph 1's unity and reasoning?