A FoxyCart Datafeed Package
The options are setup as a nested array, much like transaction details are.
You can request the options in a few ways.
From the datafeed object
$details = $datfeed->details();
$options = $details->options();
Or from the details get method
$options = $datafeed->details->get('transaction_detail_options');
The latter method will return options unassociated with a particular product.