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

After reasoning over the ontology, which class is one valid inferred class for the instance 'pT1a (lung)'? Context: A pathologic primary tumor stage for lung according to AJCC 7th edition indicating that the tumor is 2 cm or less in greatest dimension.

A. Open Data Commons
B. categorical value specification
C. Gene expression dataset
D. generalization specification

Answer: categorical value specification