Which of the following vehicles are regarded as emergency vehicles?
(i) A fire-fighting vehicle (red warning light).
(ii) An ambulance (red warning light).
(iii) A vehicle driven by a traffic officer in the carrying out of duties (blue warning light).
(iv) A vehicle driven by a person while engaged in civil protection (green warning light).
Keyboard: press A to D to answer and Enter for the next question. Your score is kept on this device only.