I wish we had no change. All the suggestions given make the sentence very looooooooooong. However since I don't have no change, I'd pick A or C. Since you picked A, I think you should go with it. It makes the sentence sound very sophisticated.
Employees, which is shorter and it does make sense. It also creates a subordinate clause rather than 2 main clauses.
The difference in choices is a hair's width. I still think you should pick one you like. I've presented my case for C. I wouldn't pay too much attention.
