I don't yet understand selecting many options with Switch Statements

<!DOCTYPE html>
<head></head>
<body>
<script>  // I am stuck so I am just guessing on how to select from many options using switch statements
function caseInSwitch(val) {
  var answer = "";
  // Only change code below this line
  switch (val) {
    case 1:
      answer = "alpha';
      break;
    case 2:
      answer = "beta";
      break;
    case 3:
      answer = "gamma";
      break;
    case 4:
      answer = "delta";
      break;
  }
  
  
  // Only change code above this line  
  return answer;  
}

// Change this value to test
caseInSwitch(1);
</script>
</body>
</html>