Step 1: Understanding the Concept:
The Product Life Cycle (PLC) comprises Introduction, Growth, Maturity, and Decline stages.
Step 2: Detailed Explanation:
During the Maturity stage, sales growth peaks and plateaus while intense competition emerges.
To sustain brand sales and extend the life of the product, marketing managers implement three primary strategies:
1. Market modification (discovering new user segments/occasions)
2. Product modification (improving quality, features, or styling)
3. Marketing program modification (adjusting price, advertising, and distribution channels).
Step 3: Final Answer:
Hence, these modification strategies are applied in the maturity stage.