All of the Following Are True About the Length of Product

All of the following are true about the length of product life cycles except which?

A) The length of service life cycles is typically longer than those for tangible products.
B) There is no set time that a product takes to move through its life cycle.
C) Technological change shortens product life cycles as new products replace existing ones.
D) The use of mass media tends to shorten product life cycles.
E) Consumer products have shorter life cycles than business products.