Which of the Following Statements About Post-Prostatectomy Radiation Therapy Used

Which of the following statements about post-prostatectomy radiation therapy used in the EORTC 22911 Trial is true?

A) It resulted in more frequent grade 2 or grade 3 late effects.
B) It improved local control, biochemical progression-free survival, and overall patient survival.
C) It was beneficial for patients who had prostate cancer with positive lymph nodes.
D) Hormone therapy was added to the treatment regimen for patients with positive lymph nodes.