Final answer:
Passing should not be started if you are within 1-2 miles of a hill or curve because it can be dangerous due to limited visibility and increased risk of accidents.
Step-by-step explanation:
The correct answer is option 1-2. According to the given information, passing should not be started if you are within 1-2 miles of a hill or curve. This is because hills and curves can limit visibility and increase the risk of accidents. Passing in such situations can be dangerous as you may not have enough time to react to oncoming traffic or obstacles.
The correct answer is option "one-third to one-quarter of a mile". When driving, it's important to avoid starting a pass if you are within one-third to one-quarter of a mile of a hill or a curve.
This safety measure is to ensure that you have enough visible distance to overtake another vehicle without encountering oncoming traffic that could be obscured by the hill or curve. This rule is part of safe driving practices that aim to reduce the likelihood of collisions and accidents on roads.
When considering how far away you must be before it is safe to pass, think about the speed you and other drivers are traveling, as reactionary distance is also a key factor. Safe passing is an essential part of road safety and maintaining the flow of traffic. A driver should always ensure adequate distance for a safe maneuver without posing a risk to themselves or others.