Physics

I'm not really sure on this one...
Am i correct?

A maglev train requires which of the following?

A. track and the train must have the different magnetic poles

B. track and the train must have the same magnetic poles <---

C. magnetic poles must alternate between the track and train at nearly the speed of light

D. a bolt of electricity must move between the track and train

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  1. Seems to me they better repel each other so I agree with you.

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    posted by Damon
  2. okay great, thx

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