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

After reasoning over the ontology, which class is one valid inferred class for the instance 'pN1 (ovary)'? Context: A pathologic lymph node stage for ovary according to AJCC 7th edition indicating that there is regional lymph node metastasis.

A. Gene expression data
B. beta
C. Non-Commercial No-Fee License
D. categorical value specification

Answer: categorical value specification