Answer:
decline.
Step-by-step explanation:
The decline stage of the product's life cycle is marked by declining sales and product profitability. Generally, in this phase, the product begins to be replaced by new technologies, becomes outdated and goes into disuse.
It is important for companies to be aware that when entering this phase, the product needs redesign planning, so that improvements are implemented that make it updated to be relaunched in the market and then start another life cycle.