When Confronted with a Still-Face Situation, Where Mothers Remain Unresponsive

Multiple Choice

When confronted with a still-face situation, where mothers remain unresponsive to infants' attempts to interact, 6-month-old infants attempt to re-establish the interaction by increasing their frequency of vocalization and smiling. This suggests that infants may __________ earlier than Piaget theorized.

A) reproduce activities they happen upon by chance
B) engage in intentional behaviour
C) coordinate input from more than one modality
D) make the A-not-B error