Sincere Forms, Inc., uses, in its ads, a trademark that is similar, but not identical, to the famous, registered mark of Desired Objects, Inc. Sincere's unauthorized use of the mark constitutes trademark dilution provided
a. Sincere's use is intentional.
b. Sincere and Desired are competitors.
c. Sincere's use lessens the value of Desired's mark.
d. consumers are confused