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: Medicine
True regarding Mitral valve prolapse syndrome is all, except - 
Select and explain. 
A. More common in female, B. Mostly symptomatic, C. High incidence of arrhythmia, D. Transient cerebral ischemia can occur
B: Mostly symptomatic
Answer: B: Mostly symptomatic 
Explanation: None