JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="answer" value="A" />
<input type="radio" name="answer" value="B" />
<input type="radio" name="answer" value="C" />
<input type="radio" name="answer" value="D" />

JavaScript

$('input[name="answer"]').filter("[value='C']").attr("checked", true);