You Are Writing the Second Edition of a User Manual

You are writing the second edition of a user manual to be included with software sold to the general public. You want to reuse a portion of the introductory materials from the first edition but cannot determine who wrote that section or what the contractual conditions were. You know that your company has customarily required that freelance writers sign work-made-for-hire agreements. What should you do?

A) Rewrite the introductory materials yourself.
B) State in a footnote that the excerpt was written under a work-made-for-hire agreement.
C) Register the work with the appropriate government agency.
D) Include a disclaimer when you insert the materials from the first edition.