In Reference to Infancy, Bowlby Believed That __________

In reference to infancy, Bowlby believed that __________.

A) infant development is a contribution of genetics and environment
B) infants do best by being raised by a family consisting of siblings, parents, and grandparents
C) the relationship an infant has with his or her primary caregiver is most important
D) infants are more likely to cry in response to the cry of another infant, compared to that of a chimpanzee