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

Which of the following classes is the superclass of '"Ghost summoned to get something from it."'?

A. "Means of summoning spirits."
B. "Reasons for summoning of ghosts."
C. "Summoning by wish."
D. "Helpful mine ghosts."

Answer: "Reasons for summoning of ghosts."