A nurse is assisting with a staff in-service regarding pain control. Which of the following statements by a staff member indicates an understanding of the information?
a) "Patients should always be prescribed the maximum dose of pain medication to ensure effectiveness."
b) "Pain control is subjective and does not vary among individuals."
c) "Assessment of pain should only focus on physical indicators, not emotional or psychological factors."
d) "Patient comfort is a priority, and pain management should be individualized."