单项选择题

Questions 164-165 refer to the following invitation.
INVITATION CARD
Mr. Robert Shenstone
Director of the Boston Institute of Atomic Energy
requests the pleasure of the company of
Mr. and Mrs. Dickenson
at a dinner party
in honor of Mr. Thomas Gotten
senior engineer of the Boston Energy Institute
on Saturday, July 27, 2009
at seven o’clock pm
at Bridges Restaurant in Willow Avenue
Reply if declining Tel: 4587623 Dress: Informal What should the Dickensons do if they cannot attend the dinner

A. Return this card
B. Call 4587623
C. Write to Mr. Shenstone
D. Inform Mr. Gotten