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Alternating between running and walking A. will slow down the chances of a person's getting into shape. B. will guarantee that you don't suffer an injury during exercise. C. is the quickest way to lose 10 pounds. D. can help lessen the damaging effects that running has on the body.

Answer :

sydp
D because there is no gaurentee you wi not be injured and there is no dang way you are gonna lose 10 lbs and won't slow it down
D. It's better if you alternate between the two and you won't injure yourself and it works your muscles but not injuring them.

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