Is the bank teller's testimony that the signature on a forged check is forged admissible as lay opinion under Rule 701?

• A. Yes, based on perception, and it helps the jury.
• B. No, only expert testimony about forgery.
• C. Yes, but only if the teller had taken an oath as an expert.
• D. No, because lay witnesses can't opine on authenticity.

Answer: (A)