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
All are true about carpal tunnel syndrome except, 
Select and explain. 
A. Seen in pregnancy, B. Median nerve compression, C. Smith's fracture is the most common cause, D. Symptoms seen more during night
C: Smith's fracture is the most common cause
Answer: C: Smith's fracture is the most common cause 
Explanation: Most common cause of carpal tunnel syndrome is idiopathic.
Malunited colle's fracture is one of the cause but Smith's fracture is not the cause.