title: Which of the following are the section of an XML document?
body: <ol>
  <li>Document Prolog</li>
  <li>Body Parts</li>
  <li>Header Parts</li>
  <li>Root Element</li>
  </ol>
  
  <p>Choose the answer:</p>
  
  <pre><code>A. 1,2,3
  B. 2,3,4
  C. 1,2,4
  D. 1,2,3,4
  </code></pre>
  
  <p>(I think 1 and 4 is true, but why do the questions have more than that?)</p>