Context: He frequently wanders into the nursery and just looks around trying to figure out what the crazy humans are doing . It will be a tough transition for him given that he 's been our baby for nearly seven years now . He is a calm dog and good with babies and little kids , but those ones always went home . It will be interesting to see how he handles it when one moves in for good .
Question: Why might it be difficult for the dog ?
Option 0: None of the above choices .
Option 1: He 's good with babies and kids .
Option 2: He is n't good with babies and kids .
Option 3: He 's never lived with a child before longterm .
Answer: 3