DIRECTIONS: In each of the following questions, a sentence has been given in Active (or Passive) Voice. Out of the four alternatives suggested select the one which best expresses the same sentence in Passive (or Active) voice. Mona was writing a letter to her father.

• A. A letter was written to her father by Mona.
• B. A letter has been written to her father by Mona.
• C. A letter was being written by Mona to her father.
• D. A letter was written by Mona to her father.