What allows a driver to change speed and direction effectively while driving?

The ability to change speed and direction effectively while driving is a crucial aspect of vehicle control and safety. When a driver can fluidly adjust both speed and direction, it allows for better maneuverability in various driving situations, such as navigating curves, merging into traffic, or avoiding obstacles. This skill is fundamental to maintaining control of the vehicle and ensuring safe driving practices.

The other options focus on specific actions or scenarios that do not encompass the broader skill set of dynamically adjusting speed and direction together. For instance, driving faster alone does not necessarily improve control and can lead to unsafe situations, while driving safer in adverse conditions is important but doesn’t specifically address the skill of changing speed and direction. Additionally, changing direction at sharper angles might be necessary in some situations, but it is just one aspect of the overall skill set needed for effective driving. Thus, the option that emphasizes the combination of both changing speed and direction effectively encapsulates the core of what is required for competent driving.