Task: Instance Description Understanding (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Which of the following definitions best describes the instance 'key'?

A. entrance hall, corridor, or vestibule, as in a public building, often serving as an anteroom; foyer
B. place where a particular kind of business is transacted or a service is supplied
C. measured parcel of land having fixed boundaries and designated on a plot or survey
D. usually metal instrument by which the bolt of a lock is turned

Answer: usually metal instrument by which the bolt of a lock is turned