The nurse is caring for the postpartum mother and baby in the hospital. The mother is concerned that the baby does not appear to notice visitors as they come into the room. What would be the most appropriate response from the nurse regarding the mother's concern?

a. "The newborn is overwhelmed with stimuli at this point. Do not be worried."
b. "The newborn can only focus on things that are within 8-10 inches at the present time."
c. "Thank you for sharing this with me. We will have your healthcare provider order a vision consult for the baby."
d. "The newborn's vision is fully developed, but is more interested in things nearby."