JSFiddle - React, Tailwind, and code Playground

HTML

<select multiple="" title="" class="" id="fm_delivery_or_collection" name="fm_fields[fm_delivery_or_collection][]">
    <option value="90" selected>Delivery or Collection1</option>
    <option value="91" selected>Delivery or Collection2</option>
    <option value="92">Delivery or Collection3</option>
</select>
<br/>

JavaScript

$("#fm_delivery_or_collection option:selected").each(function () {
    var $this = $(this);
    if ($this.length) {
        var selText = $this.text();
        console.log(selText);
    }
});