单项选择题

From: Grace Sylvester
To: Kevin Malone
Subject: Recent Appointment
Dear Mr. Malone,
Thank you for visiting the Madison County Medical Clinic on Monday. I hope that you were satisfied with the level of service and care that you received. As you requested in our recent phone conversation, I have included a scanned copy of the medical certificate, signed by Dr. Edwards, as an attachment to this email.
Should the electronic copy of this document be unacceptable to your employer, I will post the original document to them directly. Please let me know if this is necessary. Please note that, in the future, I recommend that you request a copy of your certificate when you see the doctor. This is much simpler and more convenient for everybody.
Regards,
Grace Sylvester
Secretary — Madison County Medical Clinic
What is Mr. Malone advised to do next time

A.Keep all documentation and receipts
B.Obtain a certificate during the consultation
C.Make an appointment at a more convenient time
D.Submit the electronic copy to the clinic