A nurse is caring for an infant who cries unconsolably and denies the comfort of others when the caregiver is not present. The caregiver is concerned about the emotional well-being of the infant. Which of the following statements should the nurse make?

"Separation anxiety in an infant is not a normal expected developmental stage and can result in significant emotional delays.

"In order to avoid psychological negativity, you should stay with the infant at all times."

"The infant is experiencing separation anxiety, which is expected for their development."

"The infant is going to be psychologically affected if you don't respond to them rapidly."