Why is it important for the nurse to teach a caregiver how to monitor the oxygen saturation level of a relative who will receive home ventilator therapy? a. Potential problems can be identified and acted on before serious consequences occur.b. Performance of the assessment will allow the caregiver to identify whether the client has pain.c. Caregiver participation will allow the home care nurse to perform more advanced assessments.d. Information about the cardiac and respiratory status of the client can be used by the caregiver to change ventilator settings.