Smithy writing implements has launched a range of markers with gel inks that show up brightly on dark surfaces. the pens have special writing tips and specially designed caps to prevent the ink from drying. the ad campaign for the pens, however, focuses only on their capability to write on dark surfaces as this feature is not offered by any of their competitors. in the given scenario, this feature is an example of
a. a consumer stimulant
b. product parity
c. a unique selling proposition
d. an advertising specialty

c. a unique selling proposition

Explanation:

A unique selling proposition is when a product has a unique feature that differentiates it from other products.

Smithy writing's pens writes on dark surfaces. This feature is unique to smithy writing only as other competitors don't have this feature. This is an example of a unique selling proposition.

Product party is when a product is so similar to other products that consumers can use the product in place of other similar products.

Consumer stimulants induce consumers to purchase a product. They include promos, discounts, coupons etc

Specialty advertising is when a company gives promotional products to consumers in order to increase brand awareness.

answer: penis

explanation:

the answer is account d