[A]
The queen ordered her son to go to the forest and remain there till his father calls him back.
[B]
The queen told her son that he must go to the forest and remain there till his father called him back.
[C]
The queen told his son that you must go to the forest and remain there till your father called you back.
[D]
The queen told her son to go to the forest and remained there till his father called him back.