Karpos Is Looking for a Company to Supply His Business

Karpos is looking for a company to supply his business with wire in various gauges. When sending inquiries to prospective suppliers, which of the following would be the most effective sentence to include in his opening?

A) We would like to know about your wire products.
B) It would be nice if you could tell me about your wire products.
C) Will you please answer the following questions about your wire products?
D) As our previous supplier went out of business, we need information regarding your wire products.
E) Your wire products appear to be just what we need.