JSFiddle - React, Tailwind, and code Playground

HTML

<select name="category" class="form-control" id="categorias">
    <option value="">Escolha uma categoria</option>
    <optgroup label="Vehicle">
        <option value="2">Aircraft</option>
        <option value="3">Automotive Items &amp; Parts</option>
        <option value="4">Boats &amp; Watercraft</option>
        <option value="5">Cars</option>
        <option value="6">Classic Cars</option>
        <option value="7">Commercial Trucks &amp; Tractor Trailers</option>
        <option value="8">Off Road Vehicles</option>
        <option value="9">RV &amp; Motorhomes</option>
        <option value="10">SUVs</option>
        <option value="11">Utility &amp; Work Trailers</option>
        <option value="12">Vans</option>
    </optgroup>
    <optgroup label="Sevices">
        <option value="2">Automotive Services</option>
        <option value="3">Beauty & Salon Services</option>
        <option value="4">Caregivers & Baby Sitting</option>
        <option value="5">Cleaning Services</option>
        <option value="6">Construction & Remodeling</option>
        <option value="7">Financial Services</option>
        <option value="8">Health & Wellness</option>
        <option value="9">Home Services</option>
        <option value="10">Insurance</option>
        <option value="11">Office Services</option>
        <option value="12">Real Estate Services</option>
    </optgroup>
    <optgroup label="Pets">
        <option value="2">Birds</option>
        <option value="3">Cats</option>
        <option value="4">Dogs</option>
        <option value="5">Fish & Reptile Pets</option>
        <option value="6">Free Pets to Good Home</option>
        <option value="7">Horses</option>
        <option value="8">Pet Supplies</option>
    </optgroup>
</select>

<div id="div_personalizar">
    bla bla bla
</div>

JavaScript

$("#div_personalizar").hide();

$('#categorias').change(function(){
    var valor = $(this).val();
    if(valor){
        if(valor == 1 || valor == 2 || valor == 3){
            $("#div_personalizar").show();
        }
    }else{
        $("#div_personalizar").hide();
    }
});