Ramona Has an Idea for an Electric Animal Brush That

Multiple Choice

Ramona has an idea for an electric animal brush that vacuums the animal hair and transforms it into usable sewing thread. Ramona calls her device the Hair-2-Thread and begins selling the device in January. Later that year, she decides the device would sell better if she had a patent, and she files the patent application in December. After finally receiving the patent the following year, Ramona discovers a similar device, the HairSew, is being sold by Saya and files a patent infringement lawsuit.
-Where could Ramona file a patent infringement suit?

A) A federal court.
B) A state court.
C) The USPTO.
D) Any state or federal court.
E) Any federal court or the USPTO.