The main difference between Marketing Principles 1-3 and Marketing Principel 4 is... A. The first three marketing principles help frame objectives and a roadmap while the fourth helps provide tools for effective resource allocation. B. The first three marketing principles dealt with customers and the fourth deals with suppliers. C. Marketing principles 1-3 all apply to marketing strategy before the company brings their product or service to marketing, while marketing principle 4 applies to marketing strategy once the company is already providing products or services. D. The first three marketing princples deal with strategy while the fourth principle deals with how to choose which marketing strategy makes the most sense