A mother is concerned about her 3-day-old breastfeeding newborn whose birth weight was 2678g and is now 2505g. What is the most appropriate response by the nurse?

Explain that this is an acceptable weight loss for this time.

Notify the healthcare provider of excessive weight loss.

Take the infant to the intensive care unit for an intravenous line.

Advise the mother to supplement each breastfeeding with formula.