Q. Change the voice:
The teacher punished the boys who had not done their home work.

• (A) The boys who had not done their homework had been punished by their teacher.
• (B) The boys were punished by their teacher who had not done their homework.
• (C) The boys who had not done their homework were punished by the teacher.
• (D) The boys who had not done their homework were being punished by the teacher.