Q. Change the speech:
The Principal asked me whether I had informed the Chief Guest the revised schedule the day before.

• (A) The Principal said to me, "Did I inform the Chief Guest the revised schedule the day before?"
• (B) The Principal said to me, "Have I informed the Chief Guest the revised schedule the day before?"
• (C) The Principal said to me, "Have you informed the Chief Guest the revised schedule yesterday?"
• (D) The Principal said to me,"Did you inform the Chief Guest the revised schedule yesterday?"