There Is a Document the Federal Government Has Created That

There is a document the federal government has created that you would like to use in your training class. You'll be teaching how the form is designed, its purpose, and what all parts of the form provide. The form will be included in your overhead presentation, in the course manual, and as a handout in the classroom. Is this legal?

A) No, the form is protected from copyright infringement.
B) No, the form can be shown in the overhead presentation, but not distributed or photocopied.
C) Yes, the form can be distributed with a fee to the federal government for access to the form.
D) Yes, work created by the federal government is in the public domain.