Which of the Following Statements Holds True for a Patent

Multiple Choice

Which of the following statements holds true for a patent?

A) A patent application cannot be accessed by the general public.
B) A patent expires at the end of a 20-year period.
C) A patent is subject to "first-to-invent" patent process,rather than the "first-to-file" process.
D) A patent is a process used in a business and disclosed only to those employees who need to know it to do their jobs.