Peter Drucker,the Father of Modern Management,believed That Marketing _____________

Peter Drucker,the father of modern management,believed that marketing _____________.

A) Should be a separate function within the business
B) Is the business as seen from an internal point of view
C) Is the business as seen from the customer's point of view
D) Should be considered solely as a department contributing to the firm's success
E) Should improve the quality of life for society