GMAT Critical Reasoning (CR) | White-labelling is the practice is providing a product to

abhimahna - I want to discuss your first basis.

White-labelling is the practice is providing a product to another company to be sold under that company's high-quality brand.
Since white-labelling allows the designer of a product to obtain additional revenue from a given design at minimal cost,
and it allowsthe seller of the white-labelled product to sell a product and obtain product without having had to design the product,
white-labelling is usually advantageous for bothparties.

Premise doesn't say that seller does not have a cost: It just says that sellers do not have to design the product