Task: Inferred Instance Class Reasoning (ontology: Sciences/Computer_Science)

After reasoning over the ontology, which class is one valid inferred class for the instance 'kilogram'? Context: A mass unit which is equal to the mass of the International Prototype Kilogram kept by the BIPM at Svres, France.

A. categorical label
B. version name
C. Proprietary commercial software license
D. measurement unit label

Answer: measurement unit label