PT92.S1.Q16 - Why can this not be answer choice B?

Im a little confused regarding this question. wouldn't B be a more accurate answer because the park ranger is saying people shouldn't get tickets for laws they don't know since they haven't don't a good job making the law known to the public? but after they do a better job making people aware of the new regulations they can start giving tickets?

Admin Note: Edited the title. Please use the format: "PT#.S#.Q# - brief description of question"