JSFiddle - React, Tailwind, and code Playground

HTML

<select id="selection" name="type">
    <option value="Interior">Interior</option>
    <option value="Music">Music</option>
</select>
<select id="whichvideo" name="vidtype">
    <option value="">Choose video type</option>
    <option value="Youtube">Youtube</option>
    <option value="Vimeo">Vimeo</option>
    <option id="soundcloud1" value="Soundcloud">Soundcloud</option>
</select>

JavaScript

$("#selection").change(function () {
    if ($(this).find("option:selected").val() === "Music") {
        $("#soundcloud1").show();
    } else {
        $("#soundcloud1").hide();
    }
});