title: Select a blank option in the static drop-down rails form
body: <p>I have a drop-down menu of a rails form which the user can have the option to choose between 1 to 5. And I want the drop-down to select the blank option at first.</p>
  
  <p>So I tried this:</p>
  
  <pre><code>&lt;%= f.select :point1, [[1, 1], [2, 2], [3, 3], [4, 4], [5, 5]], :include_blank =&gt; true %&gt;
  </code></pre>
  
  <p>But it didn't work. Any idea?</p>
  
  <p>Thanks!</p>