What actions should be taken when yellow flags or flashing lights are displayed?

When yellow flags or flashing lights are displayed during a race, it signifies a hazardous situation on the track that requires immediate attention from drivers. The appropriate action is to slow down, halt competitive racing, and refrain from overtaking. This is crucial for safety as it allows drivers to respond to potential dangers, such as accidents, debris, or track hazards.

Following this protocol ensures not only the safety of the driver themselves but also other competitors, track personnel, and spectators. By decreasing speed and preparing to stop racing, drivers can maintain better control of their vehicles in uncertain situations, reducing the likelihood of further incidents.

The other choices do not ensure safety and are contrary to established racing protocols. Speeding up to overtake, ignoring the flags, or only slowing down when a safety car is out can lead to dangerous conditions that could result in collisions or worsening of the situation on track. Thus, adherence to yellow flag signals is paramount for maintaining safety in motorsport events.