Principal Functions and Value ChainBefore answering this discussion question you will need to conduct a review of the Walmart Stores, Inc. Case on pages 487-501 of the course textbook and any additional resources necessary to conduct an industry analysis on retail sales industry.Before writing your response, using the textbook and knowledge you have about the Walmart, complete their industry analysis.Identifying the principal resources and capabilitiesAssessing their strategic importance in terms of the two major determinants of imitability: transferability and replicabilityAssessing the strength of the company in these resources and capabilities relative to competitorsLinking the resource analysis to the strategy being pursuedAssessing the sustainability of the firm’s competitive advantageOnce you have conducted your analysis provide your research and also answer the following questions:Which should be the primary basis for formulating strategy: the external market (customer requirements in particular) or the firm’s resources and capabilities. Please explain.In which market segments, are Walmart’s capabilities and strengths likely to be most effective? What are the implications for how the firm should compete?