Answer:
Growth
Step-by-step explanation:
Growth stage of the product life cycle is the stage at which there is a rapid increases in sales volume with high profit.
At the growth stage, the sales volume of the product continue to rise at an increasing rate with a rapid market expansion as many customers now try or use the product due to mass advertisement and word of mouth.
Changes are also introduced in the product at the growth stage and new competitors jump into the market in order to have a share of the increasing sales volume. However, already established company will control the biggest market share with high rewards.
Therefore, During the growth stage of the product life cycle, competitors jump into the market, but the company that established the early leadership position reaps the biggest rewards.