Generally, the average length of time it takes for a product category to move from the introduction stage of its product life cycle to the decline stage is:

Generally, the average length of time it takes for a product category to move from the introduction stage of its product life cycle to the decline stage is:



A.

18 months.


B.

5-10 years.


C.

20 years.


D.

unpredictable.



Answer: D


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