Questions 99-101refer to the following letter.January 15Esther Chen555 Queens RoadLeeds, EnglandDear Dr. ChenThank you for your letter. We understand that you have decided not to____①______your subscrip-tion to international medicine. We are truly sorry to lose you as a subscriber. As you know, most other journals in the field focus on specialized research topics, with little ____②_______to day-to-day medical care. Our magazine is one of the few to feature new advances in both medical research and clinic at practice.We would like to offer you a 40 percent discount on one year's subscription. Plus, if you con-tact our subscription office before January 30, we will send you any issues you have missed free of charge. Please mention my name in order for your discount to be applied ______③_____We hope to hear from you.Sincerely,Robert GoldbergVice President, Subscriptions Department ②（）

A. applicants
B. applying
C. apply
D. application