Based on Multiple Research Studies,Kagan Concluded That Differences in Infant

Based on multiple research studies,Kagan concluded that differences in infant temperament are crucial to the quality of attachment style.Has follow-up research supported his conclusion?

A) no, maternal behaviour is a better predictor of quality of attachment than infant temperament
B) yes, few children who are temperamentally "at risk" developed secure attachments
C) no, temperament has been found to have little impact on the process of developing an attachment
D) yes, infant temperament is a better predictor of attachment quality than maternal behaviour