Answer:
C. The Product's Label
Explanation:
Product advertisement is meant for them trying to sell the product and doesn't really explain the contents or what the product is meant for.
The brand name is just what the product is called and doesn't really have anything to do with what it actually is.
The label will provide information on what is in the product and what it may be used for so this will help to know if it will meet the requirements of your needs.
Hope this Helps!
