A would be the correct answer.
3. Progress notes are a critical aspect of the patient's record. Because they are essential for treatment continuity, progress notes should be completed during or immediately after each visit and must be reviewed and approved by the treating clinician.
4. Not brushing & or flossing, rinsing
5. By brushing your teeth, flossing, and rinsing, Overall giving care to your Oral health.
No there shouldn't be a comma before the"or"
