JSFiddle - React, Tailwind, and code Playground

HTML

<select name="t" id="t">
    <option value="1" selected="selected">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>

<button>Тыкни в меня</button>

JavaScript

$('button').click(function() {
    $('#t option')
    .removeAttr('selected')
    .parent()
    .find('option[value="2"]')
    .attr('selected', 'selected');
});