The Crying Behaviours of At-Risk Infants May Set the Parent-Child

The crying behaviours of at-risk infants may set the parent-child relationship on a rocky course because

A) their cries tend to be judged by adults as more grating, piercing, and aversive than those of babies not at risk.
B) they have depressed rates of crying so do not communicate distress effectively.
C) the crying of at-risk infants tends to be quieter than that of babies not at risk so is more easily ignored by caregivers.
D) normal methods of comforting infants are rarely effective with babies at risk.