patch – 4.0.0 – Multiple choice product option missing.

use page builder HTML widget with below CSS for quick fix.

<style>
  form[enctype="multipart/form-data"] div[data-product-option-change] {
    display: block !important;
    visibility: visible !important; /* Ensures it isn't hidden by visibility rules */
    opacity: 1 !important;          /* Ensures it isn't fully transparent */
}

</style>

<style>
  form[enctype="multipart/form-data"] div[data-product-option-change] {
    display: block !important;
    visibility: visible !important; /* Ensures it isn't hidden by visibility rules */
    opacity: 1 !important;          /* Ensures it isn't fully transparent */
}

</style>