In leonardo's last supper, how did the artist break with traditional iconography?

An automotive paint sequence on a suspect's car is as follows: clear coat, silverstone ii metallic, primer. a paint smear is found on a metal post near a hit-and-run assault. what coat(s) are you most likely to find on the metal post? a. silverstone ii metallic only b. clear coat only c. clear coat and silverstone ii metallic d. clear coat, silverstone ii metallic, and primer