单项选择题
a. We apologize for the inconvenience this may have caused and appreciate your understanding in this matter.
b. We are terribly sorry for the delay in delivery of goods JM24 to you. This was due to the situation that some workers in the factory suffered heatstroke as the temperature soared to 40 degrees these days, and the production has to be suspended for that matter.
c. I am writing in connection with your letter of June 6th, 2017 regarding the goods delayed.
A、a-b-c
B、b-a-c
C、c-a-b
D、c-b-a