Task: Instance Description Understanding (ontology: Sciences/Computer_Science)

Which of the following definitions best describes the instance 'pT1b (kidney)'?

A. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is more than 7 cm but not more than 10 cm.
B. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is 4 cm or less.
C. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is more than 4 cm but not more than 7 cm.
D. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is more than 7 cm in greatest dimension and limited to the kidney.

Answer: A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is more than 4 cm but not more than 7 cm.