[QA] Which is NOT mentioned in paragraph 1 as a cause of arguments between teenagers and parents?

Question:

Which is NOT mentioned in paragraph 1 as a cause of arguments between teenagers and parents?

• A.
  Teenagers drop their clothes on the floor.
• B.
  Teenagers go shopping a lot.
• C.
  Teenagers refuse to do the housework. 
• D.
  Teenagers do not tidy their rooms.