Zach has difficulty understanding whether a friend's pouting facial expression signals sadness or affection.Zach's difficulty would be especially common for those with

A) a secure attachment.
B) stranger anxiety.
C) infantile amnesia.
D) autism spectrum disorder.

Zach's difficulty in interpreting facial expressions is a common symptom of individuals with autism spectrum disorder, who struggle with social communication and interaction. This can include difficulties understanding facial expressions and other social cues. A secure attachment, stranger anxiety, and infantile amnesia are not directly related to this particular difficulty in interpreting facial expressions.