.   Which of the following is the best opening sentence for a business letter that you want to sound fairly informal?  

    A. This letter is to make you cognizant of our receipt of your order. 
B. Your order of February 10 arrived in our office today. 
C. Please be advised that I've just received your order. 
D. I am in receipt of your order of February 10.

D?

3 answers

No. Most people wouldn't say that.

What is the one sentence that most people would say?
I don't think A or C,I'll mostly go with B.
Yes. B is by far the best answer.