About how often does the sun have a pole reversal? A. every 22 years B. Every 250,000 years C. Every billion years D. Every 100 million years

Answer and Explanation:

The pole reversal of the Sun happens about every 11 years, around the time of peak solar activity during the Sun's solar cycle.

I don't understand why 11 years isn't on there, when it should be the answer

separation of church and state? not sure what you mean.