Suppose That the Mother of a Month-Old Infant Claims That

Suppose that the mother of a month-old infant claims that her infant displays interest, contentment, and disgust. Research suggests that the mother's claim is

A) likely because infants first display distinct emotions at age 4 weeks
B) likely because even newborns display these particular emotions
C) unlikely because raters cannot reliably identify distinct emotions in infants this young
D) unlikely because disgust and interest do not appear until 4 to 6 months of age