Define EC. Define and discuss the various types of EC, i.e. B2B, B2C etc. Define and discuss the various business models used in EC. How do the business models relate to each type of EC? This assignment tests your analytical and critical thinking skills and your ability to synthesize concepts around topics. The paper should be in APA format, 5-10 pages (not including reference page), with at least five references and many citations in the text. Paper should have a title page, an introduction section, various subsections organizing topics in the paper and a summary or conclusion section. Do not cut and paste. Write in your own words and cite your sources. Write in sufficient depth to cover the topic irrespective of length.