What Should Officer Green Do with the Shell Casings

What should Officer Green do with the shell casings

A) Place the shell casings in an evidence envelope and send it directly to the crime lab.
B) Carefully examine each casing and place those with extractor markings in an evidence envelope but discard the rest.
C) Carefully mark each shell casing and place it in a separate evidence envelope.
D) Take close-up photographs of each shell casing without moving it and then place it in a hazardous waste container.