During a digital rectal exam (DRE) on a 75-year-old man, the clinician suspects the patient has prostate cancer. What physical finding should make the clinician suspicious?

During a digital rectal exam (DRE) on a 75-year-old man, the clinician suspects the patient has prostate cancer. What physical finding should make the clinician suspicious?

a. An enlarged rubbery gland

b. A hard irregular gland

c. A tender gland
d. A boggy gland