Answer:
When it appears in a letter, memo, or email, what does the symbol "c" stand for COPY.
The answer is copy.
Explanation:
When it appears in a letter, memo, or email, the symbol "C" simply represent the word Copy.
Copy literately mean to duplicate effort, a document or a process. If we refer back to the narrative in the question, copy in that context, it indicated the copying of a letter, memo or email intended to be forwarded to oneself or a third party individual or a group of people in the same format and style as the initial or original message.
