What sort of company would be the most effective choice for a partner?

You have just developed a business-to-consumer (B2C) Web site that sells wetsuits for scuba diving. You want to partner with another company to start a banner ad program. What sort of company would be the most effective choice for a partner?

A.
A company that sells a different brand of wetsuits

B.
A company that sells canoes and small boats

C.
A company that sells tanks, masks and snorkels

D.
A company that sells wetsuits mainly to surfers