question: Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: As shown in the figure, E is any point in ▱ABCD, if S~quadrilateral ABCD~ = 6.0, then the area of ​​the shaded part in the figure is ()
  Choices:
  (A) 2
  (B) 3
  (C) 4
  (D) 5