Final answer:
The statement should be completed as 'curves' and 'a minimum', emphasizing the need for clear visibility when making a U-turn. Additionally, a traffic signal's presence can influence vehicle speeds at intersections.
Step-by-step explanation:
The correct answer to the fill-in-the-blank question is: You cannot do a U-turn on curves, near the crest of a hill without a minimum of clear view of oncoming traffic, or places that prohibit it. The safety instructions for making a U-turn dictate that drivers must have a clear view of oncoming traffic to avoid collisions. This is especially important on curves and hills where visibility is limited. A traffic signal at an intersection would potentially reduce the speed of vehicles, as drivers would not be able to ignore it and speed through as they might with a stop sign or no control at all.
Regarding the scenario involving a rabbit attempting to cross a freeway, if a car is traveling in the furthermost lane from the rabbit, it does not necessarily ensure that the rabbit can cross all 3 lanes safely. Factors such as the speed and distance of approaching vehicles in the other lanes, the rabbit's speed, and the alertness of the drivers would all play a part in determining the safety of its crossing.