Final answer:
The question about a rabbit's ability to cross 3 lanes of the freeway safely is undeterminable with the information provided as it lacks specifics on vehicle and rabbit speeds, distances, and reaction times.
Step-by-step explanation:
The safety of a rabbit attempting to cross all 3 lanes of the freeway when a car is traveling in the furthermost lane cannot be guaranteed based on the information provided alone. The ability of the rabbit to cross safely would depend on a variety of factors, including the speed of the vehicle, the rabbit's speed, the distance between the car and the rabbit, and the reaction times of both the rabbit and the drivers on the freeway. The mention of the 10.0 s answer being reasonable for a typical freeway on-ramp informs us that this is the accepted time it takes for a vehicle to accelerate to freeway speeds, which does not directly correlate to crossing safety for the rabbit. We are thus unable to definitively determine the safety of the rabbit's attempt to cross the freeway based on this information.