Helen Keeps Her New Baby Boy Well Fed and Clean

Multiple Choice

Helen keeps her new baby boy well fed and clean.However,she does not want to spoil him,so she does not hold him or touch him too much.After reading about Harry Harlow's research,Helen now knows that

A) humans are intelligent and their young can thrive even without being held.
B) babies need to be touched and held to develop normally.
C) infants prefer food more than comforting contact.
D) humans cannot form true attachments until they are 18 to 24 months old.