What is the difference between certifying a signature and certifying a copy of a document?

What is the difference between certifying a signature and certifying a copy of a document?

• A. A certificate for a signature verifies the signer’s identity and that the signer signed; a copy certificate states that a copy is true and correct, which not all Georgia notaries are authorized to issue.
• B. A signature certificate certifies the document's authenticity.
• C. A copy certificate certifies the signer’s identity.
• D. Both certificates perform the same function.

Answer: (A)