In an ICD-O-3 Code, Which Part Is the Behavior Code

Multiple Choice

In an ICD-O-3 code, which part is the behavior code, indicating whether a tumor is malignant, benign, in situ, or uncertain?

A) the first four digits of the morphology axis
B) after the slash on the morphology axis
C) the letter character on the topographical axis
D) the numerical characters on the topographical axis