This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
All are true about sphincter urethrae except 
Select and explain. 
A. Voluntary, B. Supplied by Pudendal nerve, C. Originates from the ischiopubic rami, D. Located at bladder neck
D: Located at bladder neck
Answer: D: Located at bladder neck 
Explanation: The urethral sphincter is two muscles used to control the exit of urine in the urinary bladder through the urethra. Two muscles either the female or male, external urethral sphincter and internal urethral sphincter. ref - BDC vol2 pg376,380