SkillsUSA Professional Development Test (PDT) Practice Test

The phrase is carbon copy because it describes creating a duplicate that includes the same writing, such as a signature, on the copy. Historically, carbon paper was used between sheets so whatever you sign on the original also appears on the copy, making both documents show the same signature. This is why you’d indicate a carbon copy when you need the signature portion reproduced on all copies. A general copy just means any duplicate, a footnote is a note at the bottom of a page, and a reference is a citation to another source; none of those specifically denote reproducing the signature on copies.