This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to sell credit card processing services to merchants
Begin by creating a few reliable credit card processing lead sources.
Similar to the sales environment of any other industry, the best lead sources are not always obvious. You must think creatively about where to find solid b2b leads.

Available choices:
(A). For example, in australia, potential customers require bank promotions in order to tap. You need to know how high-backed, high-end and high-quality they are, and what kind of information they provide.;
(B). For example, if you provide a center for consumers to store the forms you provide, you must choose a vendor that produces and distribuates majority of the content they use. Properly identify merchants you can use to attract promotion or people who enjoy business cards.;
(C). Type " enter " into a search engine. Search for a large, tangible photo of a shop.;
(D). Begin by creating a list of all the other services a new business owner needs in addition to credit card processing. Telephone and internet service providers likely deal with new business owners before you will, so their customers would be great leads for you.;
The answer is:
(D).