Final answer:
You must pull over to the right side of the road when a police officer signals you to do so for compliance with the law and to ensure safety.
Step-by-step explanation:
When a police officer signals you to pull over, the correct action to take is to pull over to the right side of the road. This action is not only required by law but also ensures the safety of all road users. When you see the police car's flashing lights or hear the siren, you should carefully slow down and steer your vehicle to the right-hand edge of the roadway and stop in a safe location.
Ignoring the signals, speeding up, or pulling over to the left could lead to dangerous situations and is against traffic laws. Once stopped, remain inside your vehicle unless instructed otherwise, keep your hands visible, and wait for the officer to approach.