As the Business World Increasingly Shifts from Product Focus to Customer

As the business world increasingly shifts from product focus to customer focus,why are most organisations treating existing customers better than in the past?

A) Existing customers are the best source of profitable and sustainable revenue growth
B) In the age of e-business,an organisation is guaranteed a favourable customer base and satisfying them is easier than ever
C) Organisations cannot depend on using statistical analysis or value formulas such as recency,frequency,and monetary to gain insight into customer behaviour or buying patterns
D) Placing customers at the forefront of all thinking and decision making requires very little operational and technology changes