Q. Wardha said to her sister, "How long do you intend to stay here?"

• (A) Wardha asked her sister that how long she intended to stay there.
• (B) Wardha asked her sister how long she intended to stay there.
• (C) Wardha asked to her sister how long she intended to stay here.
• (D) Wardha asked her sister how long she intended to stay here.