IV. Look at the signs. Choose the best answer (A, B, C or D) for questions 15 and 16. (0.5 pt) 15. What does the sign mean? A. Slippery road B. Right lane ends ahead C. Road work ahead D. Flagger ahead 16. What does the sign mean? A. Users must lock the car park after leaving. THIS CAR PARK IS LOCKED AFTER B. People can park here while they are at work. C. This car park is for employees only. BUSINESS HOURS EACH DAY