Which Statement Best Explains the Product Life Cycle

Which statement best explains the product life cycle?

A) the process by which the use of an innovation spreads throughout a market group over time and over various categories of adopters
B) the length of time a product exists in the marketplace before the market becomes saturated
C) the stages that products move through as they enter, get established in, and ultimately leave the marketplace
D) the time in which firms hire an outside firm to help generate ideas and develop new products and services
E) the process in which a product is analyzed and improved so that it does not infringe on the competitor's patents