This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Consider the following conditions- 
1. Urinary flow rate less than 10cc/second 
2. Residual volume or urine > 100cc 
3. Serum level of prostatic specific antigen > 10 mmol/litre 
4. Trabeculated urinary bladder 
Which of the above are indications of TRUP for BHP 
Select and explain. 
A. 1, 2 and 3, B. 2, 3 and 4, C. 1, 2 and 4, D. 1, 3 and 4
C: 1, 2 and 4
Answer: C: 1, 2 and 4 
Explanation: None