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

After reasoning over the ontology, which class is one valid inferred class for the instance 'pM1a (lung)'? Context: A pathologic distant metastases stage for lung according to AJCC 7th edition indicating that metastasis is histologically confirmed and a separate tumor nodule(s) in a contralateral lobe; tumor with pleural nodules OR malignant pleural or pericardial effusion.

A. action specification
B. Release candidate
C. categorical value specification
D. Attribution clause

Answer: categorical value specification