In a sum of money case, Exhibit A (a letter of demand) was admitted in evidence without objection. Was the admission erroneous?

• A. Yes, admission was erroneous and should be disregarded.
• B. No. It was admitted without objection and may be treated as if raised in the pleadings; the complaint may be amended to conform to the evidence.
• C. Yes, it cannot be used to prove the demand.
• D. No, but it cannot be used to prove payment.

Answer: (C)