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

Which of the following definitions best describes 'behavioral fear response'?

A. A behavioral response seeking to protect an organism from an a perceived external threat from a nematode or nematodes to that organism.
B. A behavioral response seeking to protect an organism from an a perceived external threat from an insect or insects to that organism.
C. The specific neuromuscular movement of a single organism in response to external or internal stimuli.
D. An acute behavioral change resulting from a perceived external threat.

Answer: An acute behavioral change resulting from a perceived external threat.