Assigned Readings:Chapter 4. Business-Level Strategy.Chapter 5. Competitive Rivalry and Competitive Dynamics.Postings: Read and reflect on the assigned readings for the week. Then post what you thought was the most important concept(s), method(s), term(s), and/or any other thing that you felt was worthy of your understanding in each assigned textbook chapter. The textbook should be a source listed in your reference section and cited within the body of the text. Other sources are not required but feel free to use them if they aid in your discussion.Also, provide a graduate-level response to each of the following questions: Discuss how Walmart’s strategic actions affect its primary European competitors? How has Walmart’s e-commerce strategy affected competitors? 450 words