Which of the following results support the idea that infants acquire object permanence earlier than Piaget suggested? a. 3-month-old infants will gaze longer than 2-month-old infants at an object that has reappeared from behind a screen occluding it. b. 3-month-old infants will gaze shorter than 2-month-old infants at an object that has reappeared from behind a screen occluding it. c. 3-month-old infants will show no interest in an object that reappeared from behind a screen occluding it. d. Neither 3- nor 2-month old infants will show any interest in an object for more than a few seconds.