Final answer:
To make a turn safely, drivers should signal for at least 100 feet prior to making the turn, allowing others to anticipate their actions. The correct option is b. 100 feet.
Step-by-step explanation:
Before making a left or right turn, drivers should signal their intention to turn for at least 100 feet. This allows other road users to anticipate the turn and react accordingly, which is a fundamental aspect of driving safely and avoiding collisions.
Notably, different jurisdictions may have specific regulations, and it's important to be acquainted with the local traffic laws regarding signaling.
If a car is driving towards you, and you need to cross the road, you must consider the distance and the speed of the car to ensure it is safe to cross. For example, in towns and cities with a speed limit of 60 km/h, one must be able to walk at least 2 m further than the width of the car (4 m in total), before the car reaches them, to cross safely.