title: Which of the following has the complement behavior in python?
body: <p>Which of the following has the complement behavior in python?</p>
  
  <pre><code>a) ~
  b) not
  c) &lt;&gt;
  d) !
  </code></pre>
  
  <p>I answered (a). but it was shown as wrong. What is the correct answer?</p>