Why Would Participants in Langlois' Experiments Rate the Average of Multiple

Why would participants in Langlois' experiments rate the average of multiple faces as more attractive than the faces from which they were created?

A) The average face elicits a self-comparison from the participant.
B) The average face is perceived as closer to our schemas of women and men.
C) The average face avoids the stereotypes of any extreme face.
D) The average face is perceived as a whole,whereas the extreme face is perceived in parts.
E) The average face is more likely to have mature features.