In which situation must you adjust your speed?

Answer: C — When road conditions are poor

Adjusting your speed when road conditions are poor is essential for maintaining safety while driving. Poor road conditions can include wet, icy, or snow-covered roads, potholes, or debris. In such situations, higher speeds can lead to reduced traction, increased stopping distances, and a higher risk of losing control of the vehicle. When the road is in less than ideal condition, the driver needs to reduce speed to allow for greater control and reaction time, which significantly enhances safety for the driver and other road users. Proper adjustments in speed, according to the conditions of the road, are a critical aspect of safe driving practices. While passing other cars also requires attention to speed, it is not an automatic requirement in all situations. Traffic lights changing certainly calls for speed adjustments, but it is a more routine scenario rather than one influenced by external factors. Being in a hurry, on the other hand, should never be a valid reason for speeding and does not take into account safety or road conditions.