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

Which of the following classes does '"Magic blue stone protects against frost."' belong to? Context: "Terminal motif D1382.12"

A. "Magic object protects against cold or burning."
B. "Transformation layman to professional man."
C. "Magic object furnishes clothes."
D. "Transformation by spell (charm)."

Answer: "Magic object protects against cold or burning."