How do I make a loop in a Json ?

I get from a ajax the Json bellow:

{"nrQuestion":1,"lable":"Choose the correct country!","qtCorretas":1,"options":[{"nrOption":1,"country":"Canada","isCorrect":false},{"nrOption":2,"lable":"Brazil","isCorrect":true}]}

How Can I make a loop in order to to put each value in objects like XML in the image attachment ?

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