Define and compare the following: Marketing research, Marketing, advertising and sales.

Define and compare the following: Marketing research, Marketing, advertising and sales. Explain how each of these fit together and how they complement one another. What are the differences between them? Do all of these departments typically get along? If no, what are the issues they have with one another? Do you believe that one of the departments is more important than another? If Yes, why? Explain your response in a minimum of 250 words. Your initial response must be researched using a minimum of three scholarly resources. These resources must be listed at the bottom of your initial post and also citied in the body of your posting. All resources and citations must be done in APA formatting.
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