A 17-year-old girl is brought into resus in cardiac arrest. On admission she is in asystole and attempts to resuscitate are unsuccessful. She collapsed whilst competing in a 1,500m race at college. The only pas t medical of note was asthma for which she occasionally used a salbutamol inhaler. There is no relevant family history. What is the most likely underlying cause o f death?
A. Long QT syndrome
B. Hypertrophic obstructive cardiomyopathy***
C. Catecholaminergic polymorphic ventricular tachycardia
D. Brugada syndrome
E. Arrhythmogenic right ventricular dysplasia.