I'm trying to add dynamic information to an option in a select element. I want to use data because it is compliant with all browsers. I tried using alt and it does show up in chrome, but I'm not sure if it is proper to have an alt tag on an option element.

```
jQuery(el).append($('<option>', {
    value: index,
    text: column_persistence[index],
    alt: check_box_id
}));

```

How do I add a data-attribute dynamically using the append jQuery method?