According to Bowlby’s conceptualization of attachment, which of the following occurs during phase 3?

A  Attachment becomes focused on one figure, usually the primary caregiver, as the baby gradually learns to distinguish familiar from unfamiliar people.

B  With increased locomotor skills, babies actively seek contact with regular caregivers, such as the mother or father.

C  Strangers, siblings, and parents are equally likely to elicit smiling or crying from the infant.

D  Children become aware of others’ feelings, goals, and plans and begin to take these into account in forming their own actions.