【单选题】

Questions 147-149 refer to the following letter.

Dear Mr. Jones:
Thanks a lot for your inquiry (147) information on our leather shoes. We have the pleasure to enclose our latest catalogue and price list. On top of that, samples of various materials we regularly use in manufacturing are (148) . Moreover, we are informing you that we would like to cooperate on product lines.
We are also sending you another catalog containing various types of other leather products. If (149) , please fax us item numbers so that we may send you samples to show our quality.
Thank you for your interest in our products.
Sincerely yours,
Catherine, Manager of Sales
A、requests
B、requested
C、requesting
D、being requested