All these sentences use the word "so" correctly except: a. unlike the hair on your head, arm hair stops growing and breaks off regularly; so does leg hair. b. unlike the hair on your head, arm hair stops growing and breaks off regularly, so does leg hair. c. unlike the hair on your head, arm hair stops growing and breaks off regularly, and so does leg hair. d. unlike the hair on your head, arm hair stops growing and breaks off regularly. so does leg hair.