Match each industry S$-$Curve phase with its correct definition.

Innovators and early adopting customers who are nitially unfamiliar with the product make initial purchases

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Sales explode as mainstream customers become familiar with the product or service and buy it$,$ and prices fall as firms manage to attain experience and economies of scale and distribution channels are established

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The initial success of the product or service attracted competitors, yet growth starts to taper off as demand reaches saturation levels. Firms focus on differentiation or cost leadership relative to competitors rather than push the category as a whole; rivalry intensifies with a number of losing firms backing out of the market.

$[$Choose$]$

Demand mainly takes the form of replacement purchases, growth slows toa halt, and those having survived the shake out compete for market share, often leading to a price war.

$[$ Choose$]$

Growth becomes negative as the market is completely saturated; the threat of substitution is real and can set off new PLCs for superior novel products or services, excess capacity leads to inventory being sold at discount prices, and firms come up with exit strategies and end$-$game strategies.