In which market structure can consumers most easily find substitutes?

client registration system, resource management system, clinical management system, patient information database, common use-system interface

explanation:

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it