What is the effect of using cruise control in adverse weather?

Answer: B — It should never be used in adverse conditions

Using cruise control in adverse weather conditions is not advisable because it can lead to a loss of vehicle control. Adverse weather, such as rain, ice, or snow, significantly reduces traction and increases stopping distances. When cruise control is engaged, the vehicle maintains a set speed and may not react adequately to changing road conditions, such as hydroplaning on wet surfaces or sliding on icy roads. Drivers may need to adjust their speed rapidly in response to conditions, and using cruise control can prevent them from doing so effectively. For example, if a driver encounters a slippery patch, the ability to quickly decelerate or accelerate to regain control is critical. Therefore, it's best to manually control the vehicle's speed and respond appropriately to the weather to maintain safety.