Which of the following is a clear sign of Mrs. Rymer appealing to Miss Shepperson's nice personality?（ ）
A.正确答案D"The end of our troubles is already in view."
B."Ever yours, sincerely and gratefully, Adelaide Rymer."
C."The cheque should be sent at the earliest possible moment."
D."How very, very grateful I am to you for your most kind tolerance."
