Answer: A) Designated bike lanes have reduced traffic-related accidents by 43 percent in other cities.
Explanation: In the given scenario we can see that a city planner thinks that allow bike lanes in downtown is worth the cost because it will help drivers and cyclists to avoid accidents. From the given options, the fact that best supports the city planner's opinion, is the corresponding to option A: Designated bike lanes have reduced traffic-related accidents by 43 percent in other cities, because it provides statistics (reliable and objective evidence) about the reduction of traffic-related accidents.
For the answer to the question above, before the competition makes sure she knows her content and topic if she finds it hard tell her to write small notes on it to expand and talk about in more detail or research it the night before the debate.
Information about polar bears is important for people to learn because polar bears are becoming extinct so it’s best to learn more about them, if more people know about them they’ll try to help them, besides they are also part of the food chain.