Which of the Following Openings Is Most Appropriate for a Straightforward

Multiple Choice

Which of the following openings is most appropriate for a straightforward claim letter?

A) We've been buying items from you on eBay for three years, and we've always been pleased with your merchandise in the past.
B) On August 14 we received a shipment containing the jewelry on which we won the bid on August 1 (Item No. 544558-15454) .
C) Please send me an 18-inch herringbone sterling silver chain to replace the enclosed broken one I received on August 14.
D) I was extremely disappointed to receive a broken 18-inch sterling silver herringbone chain in my most recent shipment.