Final answer:
c) Ignore the signal and follow the officer's instructions
You should ignore the traffic signal and follow the officer's instructions when directed, as police officers have the authority to override traffic signals for safety and management reasons.
Step-by-step explanation:
When approaching an intersection where a traffic signal light is red and a police officer motions you to go through, the correct course of action is to: c) Ignore the signal and follow the officer's instructions. Traffic signals are typically followed to ensure road safety and proper traffic flow. However, there may be instances where a police officer needs to direct traffic differently than what the signals indicate due to emergencies, accidents, or other situations. In such cases, the directive given by the police officer takes precedence over the traffic signal.
It's important to note that while vehicles would typically stop at red lights, the presence of an officer manually directing traffic overrides the usual traffic rules. Pedestrian safety also has to be considered. The police officer will ensure that it is safe for you to proceed before giving you the instruction to go through the red signal.
In summary, always follow the instructions of a police officer directing traffic at an intersection, even if those instructions contradict what the traffic signal is indicating.