Recent Studies Found That a Disorganized Attachment Style Developed in Infancy

Multiple Choice

Recent studies found that a disorganized attachment style developed in infancy only when infants had the short version of the serotonin transporter gene, 5-HTTLPR. This gene-environment interaction only occurred when

A) the infants' other-consciousness developed poorly in the first six months after birth.
B) mothers showed a low level of responsiveness toward their infants.
C) maternal nutrition was deficient during the prenatal period.
D) the infants were temperamentally inclined toward negative affectivity.