article: A crow is sitting in a big tree. She has a big piece of meat in her mouth. "My babies will have a nice breakfast," she thinks. An old fox is looking for his breakfast. He sees the crow and the meat. "How can I get that piece of meat?" he thinks.
  "Good morning, Mrs. Crow." says the fox, "How are you?" But the crow doesn't say a word. "You have very nice babies, Mrs. Crow." says the fox, "How are they? May I see them ?" Still the crow doesn't say a word.
  "You are very beautiful, Mrs. Crow, and you have a beautiful voice ,too." says the fox, "Would you please sing a song for me? "Mrs. Crow thinks "How nice Mr. Fox is! I must sing him a song." So she opens her mouth and begins to sing. At that time, the meat drops down from her mouth.
question: There's  _  in the crow's mouth.
options: a piece of bread a cup of tea a big piece of meat a nice baby