Which term refers to modifications made to a product to improve its appeal and marketability?

The term that best refers to modifications made to a product to improve its appeal and marketability is "Enhancement." Enhancements involve making changes or additions to a product to increase its functionality, aesthetic appeal, or overall value for consumers. This can include improvements in design, features, quality, or user experience. The main goal of enhancements is to attract customers and encourage sales by offering better solutions or more attractive options in the market.

Refinement can also imply improvement, but it is more about fine-tuning existing features rather than making broader modifications aimed directly at enhancing marketability. Marketing is a broader concept that encompasses strategies and tactics to promote and sell the product but does not specifically refer to the modifications themselves. Innovate involves creating something new or introducing significant changes, which may not necessarily directly focus on improvement or enhancement of existing products. Hence, enhancement is the most precise term for the modifications aimed at improving a product’s appeal.