题目内容：
根据以下内容，回答题。From: Paul Rooney <rooneyhoy@speedmail.com>
To: Green Mountain Stationery, Inc <pgmountain@qmail.com>
I have been purchasing various products through your catalog for many years. For the most part,I've been quite satisfied. However, I recently ordered a case of 1,000 envelopes for my business and am extremely disappointed.
First of all, the envelopes I received differ from the description in your catalog. They are sup-posed to be nine inches long, but the envelopes I received are six inches long. Second, the adhe-sive on the envelops is defective. I attempted to use a dozen of them, and none of them remained properly sealed.
At the very least, I would like a refund for the full cost of these envelopes, along with the shipping charge. The total amount I paid was $34.68. Furthermore, the inspection sticker on the carton states that the product, was inspected at your Burlington warehouse. I would like to know how this mistake occurred and request your assurance that this sort of thing will not happen again in the future. Otherwise, I am afraid that I will have to take my business elsewhere.
From: Sharon Park <pgreeenmountain@qmail.com>
TO: Paul Rooney <rooneyhoy@speedmail.com>
Dear Mr.Rooney,
My name is Sharon Park, and I am the director of quality control at Green Mountain Sta-tionery. Inc. I was recently made aware of your complaint by one of our customer service represen-tatives.
I would like to start by apologizing for any inconvenience you may have experience. Our ac-counting department will issue you a full refund of $34.68 for the defective envelopes. We would also like to offer you a $50 gift certificate that can be used with the purchase of any product in our catalog.
I must acknowledge that there have been some problems with inspections in our Burlington warehouse. To deal with this issue, the company has decided that the entire inspecting staff will take part in an intensive re-training program. We will review our procedures to identify anything that needs to be improved.
I have forwarded your message to our entire management team, to ensure that this issue will not be overlooked. I am sorry that we have disappointed you, and I sincerely hope you continue to purchase our products. I'm sure this was a one-time incident that will not happen again. Please don't hesitate to contact me directly in the future if you have any questions or concerns.
Sincerely,
Sharon Park
What did Mr. Rooney purchase from Green Mountain Stationery? A．Glue
B．Boxes
C．Paper
D．Envelopes
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