To decide when to use a promotion instead of an offer to market products, consider these factors: A. Product is available to a limited set of customers: Promotions are ideal for targeting specific customer segments or demographics, allowing for more controlled and strategic marketing. C. Product is available for a limited time: Promotions are effective for creating urgency and driving sales within a specific timeframe, making them suitable for products available temporarily. D. Product needs to be sold quickly: Promotions can accelerate product uptake by offering timely incentives, which is crucial for moving inventory rapidly.

These criteria align with the strategic use of promotions to drive specific sales objectives, particularly when products require targeted marketing approaches or need to clear quickly due to time constraints.