input: Write a python function to extract odd numbers from a list and sort them in descending order.
  assert extract_odd([1, 8, 5, 9, 12, 17]) == [17, 9, 5, 1]
  assert extract_odd([10, 21, 32, 43, 54, 65]) == [65, 43, 21]
  assert extract_odd([2, 4, 6, 8, 10]) == []
output: def extract_odd(lst):
      return sorted([num for num in lst if num % 2 != 0], reverse=True)