For the Lesson 7 assignment complete the case study essays as explained below.Each essay must be 500 to 750 words in length. Each essay must include an introduction, body, and conclusion, and address all parts of each question. Make sure to cite any reference you use in APA format. Proper citation format for a reference includes the name of the author(s), the title of the work, the date of the publication, and the page number.Complete both assignments listed below.Target Market SegmentsDescribe and define the target market segments for the Blackberry vs. the iPhone.What are the demographic and psychographic variables?Are the market segments different or the same? Why?