JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="radiogrp" value="op1" checked="checked">Option1
<input type="radio" name="radiogrp" value="op2"> Option2
<input type="radio" name="radiogrp" value="op3" > Option3
<input type="radio" name="radiogrp" value="op4"> Option4

JavaScript

$('input[value="op3"]').attr('disabled', 'disabled');