A 4-month-old infant is brought to the clinic by a parent with symptoms of a runny nose, a slight fever and cough for the last two days. Which finding should alert the nurse that the child is in acute respiratory distress?

A. A resting respiratory rate of 35 breaths/min is within the normal range for a 4-month-old infant and does not indicate distress. B. Flaring of the nares is a sign of respiratory distress, indicating increased work of breathing and the infant's effort to obtain more oxygen. C. Diaphragmatic respirations are common in infants and do not necessarily indicate distress unless accompanied by other signs. D. Bilateral bronchial breath sounds can be normal and do not specifically indicate acute respiratory distress.