Which of the Following Tumor Stages Is Correctly Matched to the Appropriate

Which of the following tumor stages is correctly matched to the appropriate prostate cancer involvement or invasion?

A) Stage T2b is associated with tumor involvement of more than one half of one lobe but not both lobes of the prostate.
B) Stage T2c is associated with nonpalpable tumor involvement of both lobes of the prostate via needle biopsy.
C) Stage T3a is associated with tumor invasion of the prostate apex.
D) Stage T4 is associated with tumor invasion of the seminal vesicles.