A Mother Brings Her 3-Month-Old Infant with a Cold to the Clinic.The

A mother brings her 3-month-old infant with a cold to the clinic.The mother tells the nurse that the baby has had "a runny nose for a week." When performing the physical assessment,the nurse notes that the child has nasal flaring as well as sternal and intercostal retractions.The nurse's next action should be to:

A) reassure the mother that these are normal symptoms of a cold.
B) recognize that these are serious signs and contact the physician.
C) recognize that these are symptoms of rachitic rosary and refer the infant to be seen by a physician within the week.
D) perform a complete cardiac assessment because these are probably signs of early heart failure.