If You Were Going to Set Up a Clinical Trial

If you were going to set up a clinical trial of a new chemotherapy drug that would be used in addition to traditional treatment for prostate cancer,who would you use as the control group for your experiment?

A) patients with prostate cancer who received no treatment
B) patients with prostate cancer who received traditional treatment alone
C) patients with prostate cancer who were given the trial drug but no traditional treatment
D) patients with prostate cancer who received traditional treatment plus the trial drug
E) healthy patients with no prostate cancer