title: Linq select objects in list where exists IN (A,B,C)
body: <p>I have a list of <code>orders</code>.<br>
  I want to select <code>orders</code> based on a set of order statuses.</p>
  
  <p>So essentially <code>select orders where order.StatusCode in ("A", "B", "C")</code></p>
  
  <pre><code>// Filter the orders based on the order status
  var filteredOrders = from order in orders.Order
                       where order.StatusCode.????????("A", "B", "C")
                       select order;
  </code></pre>