Can drivers increase their speed while being passed by another vehicle?

Answer: B — No, they must not increase speed

It is crucial for drivers to maintain a consistent speed when another vehicle is attempting to pass them. This principle is founded on safety and predictability on the road. If a driver increases their speed while being passed, it can lead to dangerous situations. The passing vehicle may misjudge the space needed to safely overtake and could end up in a precarious situation. Maintaining speed allows the driver being passed to facilitate a smoother and safer transition for the overtaking vehicle. It also helps to avoid unnecessary risks, such as collisions or near-misses, which can occur if drivers behave unpredictably during the passing maneuver. Thus, the fundamental rule is that a driver must not increase their speed while another vehicle is trying to pass, promoting overall road safety for all users.