This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Prostate Cancer, Subject name: Surgery
[{'content': 'Indication for Radical prostatectomy is? \nSelect and explain. \nA. Localized prostate cancer, life expectancy< 10 years, B. Localized prostate cancer, life expectancy> 10 years, C. Locally advanced prostate cancer, life expectancy < 10 years, D. Locally advanced disease with extension to lateral pelvic fascia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Localized prostate cancer, life expectancy> 10 yearsRef: Bailey & Love 26th ed. /1355* Nerve-sparing RRP is done in patients with clinically localized prostate cancer who have at least a 10-year life expectancy and low comorbidities.* Patients with locally advanced disease cannot undergo nerve-sparing RRP; because of the extent of the local tumor burden (especially posteriorly), the nerve-sparing procedure can compromise the adequacy of the operation.* The objective of modern RP are to remove the entire cancer with negative surgical margins, minimal blood loss, no serious perioperative complications, and complete recovery of continence and potency.', 'role': 'assistant'}]