The doctor said to the patient, "How do you feel now ? Has the pain gone down ?"

• A. The doctor asked the patient how he was feeling then and if the pain was down.
• B. The doctor asked the patient how he felt then and if the pain had gone down.
• C. The doctor asked the patient how he had felt when the pain was gone.
• D. The doctor asked the patient how he is feeling now and if the pain has gone down.