What should vehicles do when driving on a rainy day?

Answer: A — Vehicles should be more cautious for other vehicles and pedestrians.

When driving on a rainy day, it is crucial for vehicles to exercise increased caution towards both other vehicles and pedestrians. Rainy conditions can lead to reduced visibility and slippery road surfaces, increasing the risk of accidents. Drivers should be aware that stopping distances are longer when roads are wet, and that other road users, including pedestrians, might not be as visible or predictable. Therefore, maintaining a heightened level of awareness and readiness to respond to sudden changes in traffic or weather conditions is essential for safety. While it's true that vehicles should avoid unsafe overtaking and adhere to regular driving practices cautiously, the fundamental principle in adverse weather conditions is to prioritize safety through enhanced vigilance and caution.