Radio Button
One selection only allowed (Radio Buttons)
Radio buttons are usually organised in a distinct group. When a radio button is selected for any question type it is the only submission allowed. This could look something like this:

1{
2 "traversalId": "55babc25-b76b-4f7c-86d3-b4c970ae4ab1",
3 "algoId": 4550,
4 "nodes": [
5 {
6 "nodeId": 532,
7 "assetId": 0,
8 "errors": [],
9 "displayText": null,
10 "title": null,
11 "explanation": null,
12 "data": null,
13 "questions": [
14 {
15 "nodeId": 532,
16 "questionId": 70,
17 "displayText": "What is your sex at birth?",
18 "title": null,
19 "answers": [
20 {
21 "nodeId": 532,
22 "questionId": 70,
23 "answerId": 88,
24 "controlType": "Radio",
25 "controlValue": null,
26 "controlChecked": false,
27 "displayText": "Male",
28 "explanation": "",
29 "data": {}
30 },
31 {
32 "nodeId": 532,
33 "questionId": 70,
34 "answerId": 89,
35 "controlType": "Radio",
36 "controlValue": null,
37 "controlChecked": false,
38 "displayText": "Female",
39 "explanation": "",
40 "data": {}
41 }
42 ],
43 "explanation": "This refers to your sex at birth. Many problems relate specifically to genetically male and female organs.",
44 "data": {}
45 }
46 ],
47 "isTable": false
48 }
49 ],
50 "assessmentType": 0,
51 "algoName": "Age & Gender",
52 "errors": [],
53 "previousDisabled": true,
54 "nextDisabled": false,
55 "language": "DEFAULT"
56}