Which of the following would NOT be a defect in warning that would give rise toproduct liability?

a. a manufacturer fails to mail notices to all buyers informing them the product is dangerous

b. an inherently dangerous product has no warning on the label or packaging

c. a warning is placed improperly on the label of the product in a way that it can not be seen by the user

d. a warning on a product sold primarily in the United States is written only in Chinese