Answer: B) Interview ten drivers on their opinion of the plan.
If your objective is to discover the public's perception of a policy, you need to contact the public in order to obtain that information. A council meeting, newspaper articles, or a press release might give you some information, but it is not going to be as direct, complete and unbiased as that of talking to the public directly. Therefore, interviewing drivers on their opinion is the best way to begin a research with this objective.