Task: Class Definition Understanding (ontology: Human_Society/EmotionOntology)

Which of the following definitions best describes 'raising eyebrows'?

A. A facial expression behaviour in which the eyebrows are raised.
B. A facial expression behaviour in which the person frowns.
C. A facial expression behaviour which appears very neutral (showing no expression).
D. A facial expression behaviour in which the eyes are opened widely.

Answer: A facial expression behaviour in which the eyebrows are raised.