Regarding Product Life Cycles, Which Is TRUE

Multiple Choice

Regarding product life cycles, which is TRUE?

A) Industry sales and profits tend to reach their maximum during the market maturity stage.
B) Product life cycles describe industry sales and profits within some product-market.
C) Product life cycles are generally getting shorter and cannot be extended.
D) Every new brand must pass through all four stages of the product life cycle.
E) All of the above are true.