Task: Instance Class Understanding (ontology: Business_Finance/Occupation_Ontology)

Which of the following classes does 'domain entity does not exist' belong to as one valid explicit type? Context: The term was added to the ontology on the assumption it was a valid domain entity, but it turns out the entity does not exist in reality.

A. obsolescence reason specification
B. curation status specification
C. editors ontology module
D. job zone 1

Answer: obsolescence reason specification