JSFiddle - React, Tailwind, and code Playground
HTML
<select id="select" onchange="window.changeSrc(this);">
<option value="https://www.funnyhoop.com/wp-content/uploads/2018/06/funny-animals-1-5.jpg">First</option>
<option value="https://pbs.twimg.com/profile_images/821849411991044096/lQFa_Vly_400x400.jpg">Second</option>
</select>
<img src="" id="img"
</body>
JavaScript
window.changeSrc = function(that) {
document.getElementById("img").src = that.value;
}
window.changeSrc(document.getElementById('select'));