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

After reasoning over the ontology, which class is one valid inferred class for the instance 'pT2a (lung)'? Context: A pathologic primary tumor stage for lung according to AJCC 7th edition indicating that the tumor is more than 3 cm but not more than 5 cm in greatest dimension.

A. categorical value specification
B. beta
C. Source code clause
D. Proprietary commercial software license

Answer: categorical value specification