Convert list<classname> into JSON result

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C#

i have a model class by which i bind my List<classname> and it look like this

public class Response
{
    public vMetaData vData { get; set; }
    public List<Data> data { get; set; }
}


public class vMetaData
{
    public string version { get; set; }
}

public class Data
{
    public string ID { get; set; }
    public List<studentData> studentData { get; set; }
    public Dictionary<string,dynamic> FeeData { get; set; }
}


public class studentData
{
    public string StudentID { get; set; }
    public string StudentName { get; set; }
}


public class FeeData
{
    public string key { get; set; }
    public object value { get; set; }
}

now i have one list for studentdata and one dictionary for feedata

i need below json as a final result:-

{
	"Vdata": {
		"version": "1.0",
	},
	"data": [
		{
			"ID": "0001",
			"studentData": [
				{
					"StudentID": "0001",
					"StudentName": "std1"
				}
			],
			"FeeData ": [
				{
					"key": "feeStatus",
					"value": "Submit"
				},
				{
					"key": "StudentStatus",
					"value": "Active"
				},
			]
		},
		
		{
			"ID": "0002",
			"studentData": [
				{
					"StudentID": "0002",
					"StudentName": "std2"
				}
			],
			"FeeData ": [
				{
					"key": "feeStatus",
					"value": "Submit"
				},
				{
					"key": "StudentStatus",
					"value": "InActive"
				},
			]
		}
	]
}

how can i convert my data into this format, can any one suggest me

What I have tried:

i tried this but it create new object on every loop so only last value is bind.

for (int i = 0; i < studentdata.Count; i++)
   {

       var studentitem = "["+ JsonConvert.SerializeObject(studentdata[i])+ "]";
       List<studentData> student_data = JsonConvert.DeserializeObject<List<studentData>>(studentitem);


      var item = JsonConvert.SerializeObject(FeeData[i]);
      Feeitem = item.Replace("[", "").Replace("]","");
      var feedata = JsonConvert.DeserializeObject<Dictionary<string, dynamic>>(Feeitem);




       Response = new Response
      {
          vData = new vMetaData
          {
              version = "1.0",
          },

          data = new List<data> {
               new data { entRefIDs = EntitilementRefId, studentData = student_data,FeeData=feedata }
          }
      };
   }
   return Response;