The Marketing Manager for a Company That Manufactures Pet Foods

The marketing manager for a company that manufactures pet foods wants to base the marketing strategy she implements for the company's products on the product life cycle stages.In order to do this,she should:

A) add new ingredients to products that enter the maturity stage of the product life cycle
B) start test marketing new products every time an existing product enters the maturity stage of its product life cycle
C) change all private brands to generic brands once a product reaches the maturity stage
D) create a line extension for every product the company makes as soon the product leaves the introductory stage of its product life cycle
E) change the labels on its products as they change stages of the life cycle