Denise seeks to protect her design of a special hairclip that will hold a person's hair for nearly 24 hours. Which of the following must her patent application explain in order to receive the design patent?
a. Denise must demonstrate that the hair clip has utility.
b. Denise must demonstrate that her design is not obvious.
c. All of the answers are correct.
d. Denise must show that the design is novel.