Q. Change the speech:
"Tinu, where have you been all these days ?" asked the Principal.

• (A) The principal asked Tinu where he had been all those days.
• (B) The principal asked Tinu where he has been all those days.
• (C) The principal asked Tinu where had he been all those days.
• (D) The principal asked Tinu where was he all those days.