You Purchase Baby Blankets That You Then Customize by Embroidering

You purchase baby blankets that you then customize by embroidering them with personal details, like name and birth date, that are requested by your customers. You have an order from a customer to personalize an animal print blanket, but just found out that your supplier is out of stock of this print. You decide to write an email to your customer to deliver this bad news.
-You begin with a well-crafted buffer expressing appreciation for the customer's business and signalling that bad news may follow. Then your draft continues, "I've got bad news-I can't deliver the blanket you ordered." Which of the following statements is the best replacement for this sentence?

A) Your blanket is not available at this time.
B) Due to circumstances that are beyond my control, you will not be able to get the baby blanket you ordered.
C) I'm so sorry to say that I can't give you the blanket you ordered.
D) Due to an issue with my supplier, I am unable to obtain the animal print blanket that you requested for personalization.
E) The original statement is better than any of the above alternatives.