Final answer:
In city driving, looking ahead at least 100 meters is recommended for safety and preparedness. It gives a driver enough time to react to traffic with typical city speed limits of 60 km/h. This distance is practical for stopping or reacting to changing conditions.
Step-by-step explanation:
In city driving, develop the habit of looking ahead to ensure that you have enough time to react to traffic conditions and potential hazards. The correct distance to look ahead is not specified in the multiple-choice options given. However, looking ahead at least 100 meters in city driving is a good practice, as this distance provides a balance between being aware of your immediate surroundings and being prepared for what's ahead. Considering typical city speeds and the time it takes for a car to stop, 100 meters allows a driver ample time and space to react to most situations.
When comparing this with the information provided, we can infer that looking ahead 100 meters would be reasonable, as a car traveling at typical city speed limits (60 km/h) would cover that distance quickly. For example, if it takes 3 seconds for a car to travel 50 meters, as observed by Bridget, it would take only slightly more than 6 seconds to travel 100 meters. This ensures that a driver has sufficient time to observe, decide, and react in busy city traffic.
Additionally, when considering the need to cross the road safely, being able to clear the width of a car and an additional 2 meters (4 meters in total) before the car reaches you is essential. Hence, assessing the distance of oncoming traffic before crossing becomes crucial.