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: Orthopaedics
[{'content': 'Bulbocavernosus reflex is elicited by A/E - \nSelect and explain. \nA. Glans pens, B. Clitoris, C. Tug of foley catheter, D. Perianal', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The bulbocavernosus reflex is a spinal reflex. It is tested by application of digital pressure on the glans penis or clitoris or gently pulling on the foley catheter to cause reflex anal sphinctor contraction.\nAbsence of this reflex indicates spinal shock and return of this reflex is the first sign of recovery from spinal shock.', 'role': 'assistant'}]