What is the correct way to represent a nested object in JSON?

Question

Accepted Answer

{
   "name" :  "John" ,
   "address" : {
     "city" :  "New York" ,
     "country" :  "USA" 
  }
}

Answer

{
   "name" :  "John" ,
   "address" : [ "city" ,  "New York" ,  "country" ,  "USA" ]
}

Answer

{
   "name" :  "John" ,
   "address" :  "city: New York, country: USA" 
}

Answer

{
   "name" :  "John" ,
   "address" : ( "city" :  "New York" ,  "country" :  "USA" )
}

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