This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
Treatment of breath holding spells is ? 
Select and explain. 
A. Pyridoxine, B. Zinc, C. Iron, D. Molybdenum
C: Iron
Answer: C: Iron 
Explanation: Breath holding spells are reflexive events in which typically there is a provocative agent that causes anger,frustation,or pain and the child stas crying.the crying stops at full expiration when the child becomes apnoec and cyanotic.In somecases the child may loss consciousness and muscle tone and fall.Rare before 6 months of age,peaks at 2 years and abate by 5 years of age. During the episode,pinch the child at the onset of the spell and shouldnot exhibit undue concern or excessively cuddle the child as this reinforces the gain in attention.Iron supplementation(3mg/kg/day)is effective in children with iron defeciency. Ref : ESSENTIAL PEDIATRICS,O.P.GHAI, PG NO:37,7th edition