Retrieving values from array styled dataset

Retrieving values from array styled dataset

I have an OPTION tag as such...

  1. <option value="478" data-tagset='{"categ": "PayOff", "selector": "checkbox", "tags": ["ARM"]},
                                                     {"categ": "Term", "selector": "checkbox", "tags": ["5/1"]},
                                                     {"categ": "Type", "selector": "checkbox", "tags": ["FHA"]},
                                                     {"categ": "Features", "selector": "checkbox", "tags": ["203k", "Streamline"]}'>FHA 5/1 ARM 203(k) Streamline</option>

I can get the entire attribute for "data-tagset" with this...

  1. $('option[data-tagset]').each(function(){
    console.log ( $(this).data('tagset') )
    });

How do I, using jQuery, reference specific values or iterate through each grouping of 3 keys?