During a Home Visit, the Nurse Documents Arrival and Departure

During a home visit, the nurse documents arrival and departure time, patient vital signs, data collected for the patient, and a narrative note of the patient's response to medications and understanding of care being given. Which action does the nurse need to take prior to submitting this documentation?

A) Obtain signature of case manager.
B) Obtain signature of patient or caregiver.
C) Comment about patient's home surroundings.
D) Record the time of documentation submission.