title: Selecting a Random list?
body: <p>So I have 3 lists:</p>
  
  <p><code>a = []</code>
  <code>b = ["a", "b", "c"]</code>
  <code>c = ["d", "e", "f"]</code></p>
  
  <p>how can I randomly select either list b or c and import it into list a?</p>
  
  <p>Thanks.</p>