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: Pediatrics
A 18–month old baby presents with recurrent episodes of excessive crying followed by cyanosis, unconsciousness and occasional seizures since 9 months of age. The most likely diagnosis is – 
Select and explain. 
A. Epilepsy, B. Anoxic spells, C. Breath holding spells, D. Vasovagal attack
C: Breath holding spells
Answer: C: Breath holding spells 
Explanation: None