You respond to the scene of a 4-year-old female patient in cardiac arrest. cpr is in progress. what is the most likely cause of the cardiac arrest?

I believe one of you answer options is pneumonia, which is the correct answer. The other causes are related more toward age and are not indicative in a patient of this age. 

Directly though the patient may be suffering from V Fib.

They formed the oceans.  as they melted water was formed and the water made the oceans