Getting the class/id passed into a plug0in

Getting the class/id passed into a plug0in

I image that this is an easy one, but I'm kinda new so hopefully someone can give me some advice...

If I have a plugin thats being called...

$('.myClass').somePlugin();


How do I pull out the ".myClass" part inside the plugin?

jQuery.fn.somePlugin = function(o) {
 
  // Defaults
  var o = jQuery.extend( {
    option1 : 'something',
    option2 : 'something else'
  },o);

  // Some code

  alert('HERES WHERE I'D LIKE TO DISPLAY THE PASSED IN CLASS OR ID');

};