Task: Instance Class Understanding (ontology: Arts_Media_Entertainment/Propp)

Which of the following classes does '"Markings on tail-feathers of ruffed grouse."' belong to? Context: "Terminal motif A2412.2.1"

A. "Bird characteristics."
B. "Appearances of birds."
C. "Bird feather patterns."
D. "Markings on birds."

Answer: "Markings on birds."