The Study by Langlois and Colleagues in Which Infants Interacted

The study by Langlois and colleagues in which infants interacted with a woman wearing either an attractive face mask or an unattractive face mask demonstrated that infants

A) cannot perceive differences between attractive and unattractive faces.
B) were more positive and played more with the woman when she was attractive than when she was unattractive.
C) don't care whether people are attractive or unattractive; they derive the same amount of pleasure from playing with an attractive or an unattractive person.
D) were calmer and more attentive when interacting with the woman when she was unattractive than when she was attractive.