A nurse is a member of an interdisciplinary team that uses critical pathways. According to the critical pathway, on day 2 of the hospital stay, the patient should be sitting in the chair. It is day 3, and the patient cannot sit in the chair. What should the nurse do?

A) Add this data to the problem list.
B) Focus chart using the DAR format.
C) Document the variance in the patient's record.
D) Report a positive variance in the next interdisciplinary team meeting.