单项选择题

We need to postpone the sales meeting that I had arranged for January 15. I have a meeting with a client in Cancun on January 14, and I was not able to get a flight back to Houston until January 16. I"m sorry for any inconvenience this may cause you. The meeting is now tentatively rescheduled for 9 A.M. on January 18 in the conference room. What is the purpose of this e-mail

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