Knockoff goods are: a. goods carrying a trademark without authorization. b. goods manufactured in excess of the permission granted by the trademark holder. c. permitted after the five-year period for trademark registration expires. d. none of the above

a. trademark without authorization

Explanation:

Are those copied or itemized goods that copy or imitate the physical appearance of the original goods but don't copy the brand name and the logos or the trademark of the product. They are also called as Counterfeit consumer goods.