Answer:
The correct option is (d)
Explanation:
Products have a cycle starting from introduction, growth, maturity and decline. This is called product life cycle. Considerable investment is required at introduction stage. Once the product is profitable, it enters growth stage and at maturity, it is at the most profitable stage. A product reaches decline stage as competitors step in and better products are made available in the market.
By adding features to its models, BMW is trying to lengthen its product life cycle so as to avoid the product's entry to decline stage soon.
