The nurse screens an 8-month-old girl in a well-baby clinic. The nurse is MOST concerned if the infant's mother makes which of the following statements?
1. "My daughter has almost doubled her birth weight."
2. "When I walk in the room, my child smiles at me."
3. "When she is around her grandpa, my child cries."
4. "My daughter can't quite say 'mama' yet."