You will be given a definition of a task first, then some input of the task.
In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to write a market description [title] Plan time for research. [step] Before launching your business, schedule some time to compile information about your competitors, potential customers, and the industry or sector you are entering. Use government databases, like those available from the u.s. small business association, for information. <sep> (A) You can also find information on marketing activities, sales figures, website structures, and trade pages, if you have access to them. [substeps] Getting background information about your competitors can be a great way to gauge how you are going to approach your market. (B) This will give you a good idea of who is implementing your market listing. [substeps] Where are your competitors? As a general rule, you will want to research each company individually and achieve a working comparison with each before giving any product or service. (C) [substeps] Keep a notepad on hand and jot down good summaries of the names and demographics of your local businesses. Consider using google search engine skills to find out more. (D) Business magazines, academic or trade associations, and local business bureaus can also be helpful. [substeps] Before writing a market description, be aware of the " iceberg principle.
Output:
D