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

After reasoning over the ontology, which class is one valid inferred class for the instance 'nanomolar'? Context: A unit of molarity which is equal to one thousandth of one millionth of a molar or 10^[-9] M.

A. Open source software license
B. measurement unit label
C. Derivatives clause
D. questionnaire

Answer: measurement unit label