Bennett and Colleagues (2005) Used an Arm Restraint Condition to Elicit

Bennett and colleagues (2005) used an arm restraint condition to elicit emotional expressions from 4 and 12 month old infants. Four and 12 month olds were similar in that the most common emotion that they expressed was _______. As for angry expressions, 4 month olds differed from 12 month olds because the 4 month olds expressed anger _______________.

A) fear; mostly through yelling whereas the 12 month olds tended to struggle when angry.
B) joy; mostly through yelling whereas the 12 month olds tended to struggle when angry.
C) fear; less often than the 12 month olds.
D) joy; less often than the 12 month olds.