How does it relate
to public domain
and fair use?

mark me brainiest please

If a book, song, movie, or artwork is in the public domain, then it is not protected by intellectual property laws (copyright, trademark, or patent laws)—which means it's free for you to use without permission. As a general rule, most works enter the public domain because of old age.

How does public domain apply to fair use?

The term “public domain” refers to creative materials that are not protected by intellectual property laws such as copyright, trademark, or patent laws. The public owns these works, not an individual author or artist. Anyone can use a public domain work without obtaining permission, but no one can ever own it.

Explanation:

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses