For the table you create you will need to have a foreign key to join the options with the corresponding item unless all items will have the same options. This new column would be the an item id column.
You would then have your rs for the options, you would use this rs to populate a select list on the page.
To get the price for this option you will need to have another recordset on the page that will be filtered on the id of the posted option. You would then use this recordset to get the options price. You can either use the price for the option as the price for the item if it includes the item costs, or you can add it to the price for the item. This final part would be done in the add to cart for the item.