The category of road workers includes what kinds of road users? A. People who sell food on the side of the road
B. People who use their car or a company car to do their job
C. Road maintenance crews, utility crews, school crossing guards, and traffic officers
D. New and used car salespeople

Two technicians are discussing oil changes. technician a says that waste oil and old filters need to be disposed of according to the law. technician b says that old filters can be returned to the parts department for a core value. which technician is correct?           a. technician a only   b. both technicians a and b   c. technician b only   d. neither technician a nor b