Final answer:
A motorist should slow down when approaching a curve in the road, driving in bad weather, or in congested areas. It is essential to adapt speed for safety based on varying driving conditions. Therefore correct option is A) Driving on a straight, clear road with good visibility
Step-by-step explanation:
Three reasons when a motorist should slow down are:
Approaching a curve in the road: Curves can be challenging to navigate at high speeds due to limited visibility and the need for precise steering.
Driving in inclement weather conditions, such as rain, snow, fog, or ice, which can significantly reduce traction and visibility, making it necessary to slow down.
When in traffic congestion or a heavily populated area where pedestrians or other vehicles might unexpectedly enter the roadway, it is important to reduce speed to have enough time to react to sudden changes.
Approaching a curve in the road: When a motorist is approaching a curve in the road, they should slow down to maintain control and avoid the risk of veering off the road.
Passing a slower vehicle: When a motorist needs to pass a slower vehicle, they should slow down to ensure a safe and controlled overtaking maneuver.
Accelerating onto a highway entrance ramp: When a motorist is entering a highway from an entrance ramp, they should slow down to match the speed of the traffic on the highway and merge safely.
It's important to adhere to the posted speed limits and adjust your speed according to road conditions, traffic, and visibility to ensure safety.
Therefore correct option is A) Driving on a straight, clear road with good visibility