Answer:
d. The book Nano Nukes
Step-by-step explanation:
Copyright protects original works of authorship from the time the works are created in a fixed form like:
- Literary works
- Musical works, including any accompanying words•
- Dramatic works, including any accompanying music•
- Pantomimes and choreographic works•
- Pictorial, graphic, and sculptural works•
- Motion pictures and other audiovisual works•
- Sound recordings, which are works that result from the fixation of a series of musical, spoken, or other sounds •
- Architectural works
If he wants to protect Halftime device, he should patent it.
Reference: U.S. Copyright Office. “Copyright Basics - Circular 1.” Library of Congress, 2017.