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 say? A. Train station ahead B. Railway crossing without barrier ahead C. Stream train museum ahead D. Railway crossing with barrier ahead 16. What does the notice say? WARNING: A. This toy is only suitable for children over 3 years old. B. This toy only works with adult supervision. CHOKING HAZARD-Small parts Not for children under 36 months. Use with adult supervision only. C. Children at all ages must not play this toy. D. This toy is only for small children.