You are a product manager for a manufacturer of trampolines. You have determined that the trampoline is in the maturity stage of the product life cycle. To keep your product from entering the decline stage, you should:

A) promote trampolines heavily to dealers and customers
B) raise the price of your trampolines because customers are not price sensitive in this stage
C) use promotion to increase primary demand for trampolines
D) eliminate all unnecessary marketing expense
E) abandon peripheral target markets for trampolines