title: Rename field in Mongoose response
body: <p>Is it possible to rename fields in my Mongoose query response?</p>
  
  <p>In this example I'm selecting field <code>c</code> from my documents.</p>
  
  <pre><code>Test.find({a:b}, 'c', function(err, data) {
      console.log(data);
  })
  </code></pre>
  
  <p>Is there a clean way to rename the <code>c</code> field to something else?</p>
  
  <p>Note that I would just like to rename it for this query only, not for other queries that will fetch <code>c</code>, nor for the database in general.</p>