Answer:
b. Lowering the sale price of the product
Explanation:
When the sale price of a product is lowered, it often decreases the demand for the product because consumers may perceive it as lower quality or less valuable.
This decrease can lead consumers to think there might be something wrong with the product, making them less interested in purchasing it.
Having plenty of the product to sell, a healthy economy and higher cultural popularity for the product would likely increase demand rather than decrease it.