JSON Object Navigation to nested value

I am new to JSON and trying to manipulate JSON for some validation

My JSON looks like this . I need to pick the JSON object based on the refcode and then get count of different object in that, and navigate deeper inside to get the key value pair. Can someone guide me how I can navigate.

{
  "components": [
    {
      "id": 12,
      "text": "ABC",
      "refCode": "CO_ABC",
      "patternCode": "0",
      "components": [
        {
          "id": 1234,
          "text": "types",
          "refCode": "CO_TYPES",
          "questions": [
            {
              "questionId": 122324,
              "questionText": "Is this you",
              "questionSequence": 1,
              "questionRefCode": "QN_STAY",
              "hasPreselectedAnswer": false,
              "responsesMetadata": {
                "cardinality": "single",
                "patternCode": "5",
                "dataType": "STRING",
                "numberMin": null,
                "numberMax": null
              },
              "choices": [
                {
                  "choiceId": 5456,
                  "choiceRefCode": "YES",
                  "choiceText": "Yes",
                  "sequence": 1
                },
                {
                  "choiceId": 8798,
                  "choiceRefCode": "NO",
                  "choiceText": "No",
                  "sequence": 2
                }
              ],
              "editable": true,
              "accessible": true
            }
          ]
        },
        {
          "id": 13,
          "text": "State of stay",
          "refCode": "CO_STATE",
          "questions": [
            {
              "questionId": 1,
              "questionText": "Which state do you stay",
              "questionSequence": 2,
              "questionRefCode": "QN_STATE",
              "hasPreselectedAnswer": false,
              "responsesMetadata": {
                "cardinality": "multiple",
                "patternCode": "1",
                "dataType": "STRING",
                "numberMin": null,
                "numberMax": null
              },
              "choices": [
                {
                  "choiceId": 1,
                  "choiceRefCode": "CH_AZ",
                  "choiceText": "Arizona",
                  "sequence": 1
                },
                {
                  "choiceId": 2,
                  "choiceRefCode": "CH_PA",
                  "choiceText": "Pennsylvania",
                  "sequence": 2
                }
              ],
              "accessible": true
            }
          ]
        }
      ]
    }
  ]
}