When an exhibit has parts that must each be named, the "subset" number has to have a hyphen in front of it.
...Q I am referring to 11-A, -B, and -C.
A It is -C that I was referencing.
Q So you are not including -A and -B?
A No. I had nothing to do with -A and -B. My interest was in -C.
Happy punctuating!
Margie