All of the Following Statements About Emotional Expression Are True

All of the following statements about emotional expression are true EXCEPT:

A) different forms of happiness seem to fade gradually into each other in infants rather than being sharply defined
B) different forms of happiness seem to fade gradually into each other in adults rather than being sharply defined
C) negative emotions are often seen as more clearly distinct from each other in infants
D) negative emotions are often seen as more clearly distinct from each other in adults