Briana is discussing research findings on selective attention to her classmates. She explains that:

Which of the following parental responses is the BEST example of sensitive responsiveness?

A) Pete's father makes sure that Pete eats his lunch at 12:00 and has a snack at 3:00 every day. B) Teresa's mother always makes sure Teresa has everything she needs even before she asks. C) Jon smiles and points to a dog and says, "Da." His mother responds, "Yes, Jon, that's a dog." D) Mary's father picks her up and hugs her frequently and tells her she's a "sweet baby."

Baby Hannah is shown a stuffed sheep, and then it is hidden under a blanket. Which of the following statements is true?

A) Hannah must coordinate two schemes to retrieve the object: "pushing" aside the blanket and "grasping" the stuffed sheep. B) Deliberately retrieving the stuffed toy is an example of a secondary circular reaction. C) Deliberately retrieving the stuffed toy is an example of a primary circular reaction. D) Hannah will not be able to retrieve the stuffed toy sheep until she is in Substage 5 of Piaget's sensorimotor period.