A nurse is planning care for 2-month-old infant following a surgical procedure. Which of the following pain rating scales should the nurse plan to use to determine the infant's level of pain?

A. The FLACC scale (Face, Legs, Activity, Cry, Consolability) is designed for infants and young children who cannot verbally communicate their pain, making it suitable for a 2-month-old. B. The FACES scale is used for older children who can point to or choose faces that represent their pain level and is not suitable for a 2-month-old. C. The OUCHER scale is used for children aged 3 to 13 years and includes pictures representing pain, so it is not appropriate for a 2-month-old. D. The PANAD scale is not a standard pain rating scale used for infants and is less commonly used than the FLACC scale.