<prompt> The most indicative test for prostate cancer is:A thorough digital rectal examinationMagnetic resonance imaging MRIExcretory urographyProstate-specific antigen  <response>: An elevated prostate-specific antigen level indicates prostate cancer, but it can be falsely elevated if done after the prostate gland is manipulated.Option A: A digital rectal examination should be done as part of the yearly screening, and then the antigen test is done if the digital exam suggests cancer.Option B: MRI is used in staging the cancer. 