Answer:
B) after-sales beauty advice offered by Silk skin
Step-by-step explanation:
Silk skin is selling cosmetics, here specifically the eye liner, people love make up as it looks beautiful and makes the user beautiful, but is only till the time it is applied, after that there are after concerns of for the quality of skin.
This basically reflects that there are issues with the after effects of makeup. Thus, if Silk skin provide extra tips complimentary with its cosmetics, it would be a great as it will add value to the silk skin brand, even though there is great quality in its products.