Which of the Following Statements Is NOT TRUE of the Product

Which of the following statements is NOT TRUE of the product life cycle?

A) How long a whole product life cycle takes, and the length of each stage, varies a lot across products.
B) Although the life of different products varies, on average product life cycles are getting longer.
C) The greater the comparative advantage of a new product over those already on the market, the more rapidly its sales will grow.
D) If the product can be tried on a limited basis, without a lot of risk to the customer, it can usually be introduced more quickly.
E) A product idea may be in a different life-cycle stage in different markets.